Alfred Gwynne Morang Paintings & Artwork for Sale | Alfred Gwynne Morang Art Value Price Guide

Dec. 07, 2024
ALFRED MORANG (1901-1958) SANTA FE WATERCOLOR
Est: $600 - $900
Alfred Gwynne Morang (1901-1958) Untitled New Mexico Landscape Mid 20th Century The landscape with a central abstracted adobe structure is signed lower right. Sheet measures 7 x 5 inches. Without proof of exemption, be aware that internet sales tax applies to all Internet transactions and local sales tax may apply to local pick-up transactions. We happily provide seamless in-house packing and shipping services on nearly everything we sell. Until further notice, we cannot offer international shipping in-house.
Dirk Soulis Auctions
Oct. 26, 2024
Alfred Morang Painting
Est: $3,000 - $5,000
Artist/Designer; Manufacturer: Alfred Morang (American, 1901-1958) Marking(s); notes: signed; dated (partially obscured by framing) Materials: oil on board Dimensions (H, W, D): 13.75"h, 16.5"w; 17.75"h, 20.5"w frame Additional Information: Alfred Morang was an artist, writer, musician, and radio host whose work was heavily influenced by the French impressionists. He moved west for health reasons in 1937, where he became an active part of the Santa Fe art colony. Following his death in a house fire, "The Santa Fe art community was distraught. There was a sense of guilt among Morang’s closest friends, a grave regret that the masterful artist had received only a fraction of the recognition he deserved. 'Why shouldn’t Santa Fe be stunned by the loss of Alfred?' said one local artist. 'After all, he taught half of us how to paint; the other half how to see.'” (source: santafeartstudio.com) This lot is available for truck shipment to points along the I-95 corridor at a flat rate of $250 (including Shipper's full coverage for damage or loss). Flat rate includes first-floor delivery within 50 miles of Interstate 95 (I-95) extending from PBMA in Lake Worth Beach to Massachusetts, including but not limited to Washington (D.C.), Philadelphia (Pennsylvania), New York City (New York), New Haven (Connecticut), Providence (Rhode Island), and Boston (Massachusetts). This flat rate will also be applicable to certain additional areas on shipper's normal routes, including Atlanta (Georgia), the Hamptons (New York), and the Piedmont Triad of Greensboro/High Point/Winston-Salem (North Carolina). If your location is within the general area mentioned and you would like to confirm the flat rate applies or receive a revised quote for your specific needs, please contact Shipper directly: East Coast Express - Nicolas Prechaniuk: 973.803.6059. Shipper is a third-party vendor; payment for their services and any delivery instructions should be directed to them. PBMA has worked with Shipper for years and has full confidence in them, but Shipper will be solely responsible and insure against any damage or loss. We will work with Buyer and Shipper to combine shipping for qualifying lots where possible; please inquire to confirm availability of combination shipment and quote. International shipments will be referred to a third-party carrier; please email us if you need assistance. Winning bidders are welcome to use their own shipper if preferred.
Palm Beach Modern Auctions
Oct. 26, 2024
Alfred Morang Painting
Est: $3,000 - $5,000
Artist/Designer; Manufacturer: Alfred Morang (American, 1901-1958) Marking(s); notes: signed; dated (appears to read 1944) Materials: oil on board Dimensions (H, W, D): 13.5"h, 15.5"w; 17.5"h, 19.5"w frame Additional Information: Alfred Morang was an artist, writer, musician, and radio host whose work was heavily influenced by the French impressionists. He moved west for health reasons in 1937, where he became an active part of the Santa Fe art colony. Following his death in a house fire, "The Santa Fe art community was distraught. There was a sense of guilt among Morang’s closest friends, a grave regret that the masterful artist had received only a fraction of the recognition he deserved. 'Why shouldn’t Santa Fe be stunned by the loss of Alfred?' said one local artist. 'After all, he taught half of us how to paint; the other half how to see.'” (source: santafeartstudio.com) This lot is available for truck shipment to points along the I-95 corridor at a flat rate of $250 (including Shipper's full coverage for damage or loss). Flat rate includes first-floor delivery within 50 miles of Interstate 95 (I-95) extending from PBMA in Lake Worth Beach to Massachusetts, including but not limited to Washington (D.C.), Philadelphia (Pennsylvania), New York City (New York), New Haven (Connecticut), Providence (Rhode Island), and Boston (Massachusetts). This flat rate will also be applicable to certain additional areas on shipper's normal routes, including Atlanta (Georgia), the Hamptons (New York), and the Piedmont Triad of Greensboro/High Point/Winston-Salem (North Carolina). If your location is within the general area mentioned and you would like to confirm the flat rate applies or receive a revised quote for your specific needs, please contact Shipper directly: East Coast Express - Nicolas Prechaniuk: 973.803.6059. Shipper is a third-party vendor; payment for their services and any delivery instructions should be directed to them. PBMA has worked with Shipper for years and has full confidence in them, but Shipper will be solely responsible and insure against any damage or loss. We will work with Buyer and Shipper to combine shipping for qualifying lots where possible; please inquire to confirm availability of combination shipment and quote. International shipments will be referred to a third-party carrier; please email us if you need assistance. Winning bidders are welcome to use their own shipper if preferred.
Palm Beach Modern Auctions
Jul. 25, 2024
Alfred Gwynne Morang, Acequia Madre
Est: $300 - $500
Alfred Gwynne Morang (1901 - 1958) Acequia Madre drypoint, etching signed lower center: Alfred Morang -
Santa Fe Art Auction
Jul. 13, 2024
Alfred Gwynne Morang, Maine, New Mexico (1901-1958), Impressionistic Wooded Path, oil on canvas
Est: $3,000 - $5,000
Alfred Gwynne Morang Maine, New Mexico, (1901-1958) Impressionistic Wooded Path oil on canvas signed lower right, framed.
Link Auction Galleries
Jun. 13, 2024
ALFRED GWYNNE MORANG, American 1901-1958, Southwestern Landscape, oil on masonite, 12 x 16 in. (30.5 x 40.6 cm.), Frame: 18 1/2 x 22 1/2 x 2 in. (47 x 57.2 x 5.1 cm.)
Est: $2,500 - $3,500
ALFRED GWYNNE MORANG American, 1901-1958 Southwestern Landscape oil on masonite signed and dated lower right "56 / Alfred Morang"
Shannon's
Nov. 10, 2023
Alfred Gwynne Morang, Pueblo Landscape
Est: $1,000 - $2,000
Alfred Gwynne Morang (1901 - 1958) Pueblo Landscape watercolor on paper signed lower right: Alfred Morang
Santa Fe Art Auction
Nov. 10, 2023
Alfred Gwynne Morang, Lady of the Night
Est: $1,000 - $2,000
Alfred Gwynne Morang (1901 - 1958) Lady of the Night pastel on paper signed lower center: Alfred / Morang
Santa Fe Art Auction
Feb. 11, 2023
Alfred Morang (1901 - 1958) American
Est: $1,000 - $2,000
Alfred Morang (1901 - 1958) Oil on board , Signed , measures 8" x 10" , w/frame 11" x 13'
Cutler Bay Auctions
Nov. 30, 2022
Alfred Gwynne Morang (American, 1901-1958) Landscape Oil on board 12 x 16 inches
Est: $800 - $1,200
Alfred Gwynne Morang (American, 1901-1958) Landscape Oil on board 12 x 16 inches (30.5 x 40.6 cm) Property from the Collection of Jack B. Harrod, Jr. HID01801242017
Heritage Auctions
Oct. 13, 2022
Alfred Gwynne Morang (American, 1901-1958) Untitled, 1947 Oil on board 12 x 17-3
Est: $1,000 - $1,500
Alfred Gwynne Morang (American, 1901-1958) Untitled, 1947 Oil on board 12 x 17-3/4 inches (30.5 x 45.1 cm) Signed and dated lower right: Al fred / Morang / 1947 HID01801242017
Heritage Auctions
Sep. 07, 2022
Alfred Gwynne Morang (1901-1958) Drawing
Est: $150 - $300
Alfred Gwynne Morang, American (1901-1958) Felt Pen Drawing " The Empty Martini Glass, 1954" Signed and Dated Lower Left. Inscribed en verso Sight measures 10-3/4" H x 12-3/4" W, frame measures 18-5/8" H x 20-5/8" W. Condition: Good condition Estimate: $150.00 - $300.00 Domestic Shipping: $78.00
Kodner Galleries
Jun. 24, 2022
Alfred Morang, Café Scene, 1954
Est: $3,000 - $5,000
Alfred Morang (1901 - 1958) Café Scene, 1954 watercolor, pen and ink on board signed and dated lower left: Alfred Morang 54
Santa Fe Art Auction
Jun. 24, 2022
Alfred Morang, Untitled (Abstraction), 1946
Est: $1,000 - $2,000
Alfred Morang (1901 - 1958) Untitled (Abstraction), 1946 watercolor on paper signed and dated lower right: Alfred Morang 46
Santa Fe Art Auction
Jun. 21, 2022
Alfred Morang, (1901-1958, Santa Fe, NM), "Dry-Point no. 1," 1946, Drypoint on paper under glass, Plate: 4" H x 4.875" W; Sight: 4.25"
Est: $500 - $700
Alfred Morang (1901-1958, Santa Fe, NM) "Dry-Point no. 1," 1946 Drypoint on paper under glass Edition of unknown size Signed, titled and dated in ink in the lower margin: Alfred Morang Plate: 4" H x 4.875" W; Sight: 4.25" H x 5.25" W
John Moran Auctioneers
Jun. 21, 2022
Alfred Morang, (1901-1958, Santa Fe, NM), "Forms in Dusty Space," 1956, Drypoint on paper under glass, Plate: 4" H x 5" W; Sight: 4.25"
Est: $500 - $700
Alfred Morang (1901-1958, Santa Fe, NM) "Forms in Dusty Space," 1956 Drypoint on paper under glass Edition of unknown size Signed, titled and dated in pencil in the lower margin: Alfred Morang Plate: 4" H x 5" W; Sight: 4.25" H x 5.25" W
John Moran Auctioneers
May. 11, 2022
Alfred Gwynne Morang (American, 1901-1958) Untitled, 1947
Est: $3,000 - $4,000
Alfred Gwynne Morang (American, 1901-1958) Untitled, 1947 two-sided watercolor and ink on paper signed Alfred Morang and dated (lower right) 9 5/8 x 14 inches.
Hindman
Dec. 08, 2021
ALFRED MORANG (AMERICAN, 1901-1958) IMAGINING PARIS
Est: $1,500 - $2,500
Alfred Morang (American, 1901-1958) Imagining Paris Signed twice and dated '45' bottom right, oil on board. (8 3/4 x 15 1/8 in. (22.2 x 38.4cm)) Provenance Private Collection, Florida. Condition report: Frame: 18 x 24 x 1 3/4 in.
Freeman's | Hindman
Nov. 06, 2021
Alfred Morang, Untitled (Abstraction)
Est: $2,000 - $3,000
Alfred Morang (1901 - 1958) Untitled (Abstraction) oil on board signed indistinctly lower center
Santa Fe Art Auction
Nov. 06, 2021
Alfred Morang, West End of Town, ca. 1940
Est: $4,000 - $6,000
Alfred Morang (1901 - 1958) West End of Town, ca. 1940 oil on board signed lower right: ALFRED MORANG inscribed verso: WEST END OF TOWN / BY Alfred Morang / ca. 1940s
Santa Fe Art Auction
Nov. 06, 2021
Alfred Morang, Untitled (Still Life), 1945
Est: $6,000 - $9,000
Alfred Morang (1901 - 1958) Untitled (Still Life), 1945 oil on canvas inscribed verso: ALDRED / MORANG / 1945
Santa Fe Art Auction
Nov. 03, 2021
Alfred Morang (American, 1901-1958) Abstract Still Life Sketch, 1951
Est: $1,000 - $2,000
Alfred Morang (American, 1901-1958) Abstract Still Life Sketch, 1951 watercolor, pen and ink on paper signed Alfred Morang, dated and dedicated (lower edge) 7-1/4 x 10 inches The Marilyn Eber Collection of Native American Art, Denver, Colorado
Hindman
Nov. 03, 2021
Alfred Morang (American, 1901-1958) House Sketch
Est: $700 - $900
Alfred Morang (American, 1901-1958) House Sketch watercolor and pen on paper signed Alfred Morang (lower edge) 4 x 5-3/4 inches The Marilyn Eber Collection of Native American Art, Denver, Colorado
Hindman
Mar. 20, 2021
Alfred Morang, Untitled (City Scene), 1954
Est: $1,000 - $2,000
Alfred Morang (1901 - 1958) Untitled (City Scene), 1954 watercolor on paper signed and dated lower right: Alfred Morang 54 8 3/4 x 11 1/2 in. (22.23 x 29.21 cm.), Frame: 14 3/8 x 16 3/4 x 7/5 in. (36.51 x 42.55 x 1.91 cm.)
Santa Fe Art Auction
Mar. 20, 2021
Alfred Morang, Ladies of the Night
Est: $600 - $800
Alfred Morang (1901 - 1958) Ladies of the Night ink on paper signed verso: Alfred Morang 4 3/4 x 7 1/2 in. (12.07 x 19.05 cm.), Frame: 20 x 22 1/2 x 1 1/4 in. (50.80 x 57.15 x 3.18 cm.)
Santa Fe Art Auction
Feb. 11, 2021
Attributed to Alfred Morang (1901-1958): Portrait of Mary Hunsaker
Est: $1,500 - $2,500
Oil on paperboard, unsigned, inscribed 'Portrait of Mary Hunsaker (?)/Before 1943' on the reverse. 23 1/4 x 17 3/4 in., 31 1/2 x 26 in. (frame).
STAIR
Nov. 14, 2020
Alfred Morang, Self Portrait, 1956
Est: $6,000 - $8,000
Alfred Morang (1901 - 1958) Self Portrait, 1956 mixed media on paper signed and dated lower right: A Morang 56 inscribed verso: Alfred Morang / 1956 15 x 15 1/2 in. (38.10 x 39.37 cm.), Frame: 21 7/8 x 21 7/8 x 1 1/4 in. (55.56 x 55.56 x 3.18 cm.)
Santa Fe Art Auction
Nov. 14, 2020
Alfred Morang, The Women at Claude's
Est: $6,000 - $8,000
Alfred Morang (1901 - 1958) The Women at Claude's oil on canvas board signed lower left: Alfred / Morang 20 x 16 in. (50.80 x 40.64 cm.), Frame: 26 1/8 x 22 1/8 x 1 3/4 in. (66.36 x 56.20 x 4.45 cm.)
Santa Fe Art Auction
Nov. 12, 2020
Alfred Gwynne Morang (American, 1901-1958) Night Club Singer Pastel on board 10
Est: $400 - $600
Alfred Gwynne Morang (American, 1901-1958) Night Club Singer Pastel on board 10 x 7-3/4 inches (25.4 x 19.7 cm) Signed and titled verso: Night Club Singer / By Alfred Morang EXHIBITED: Museum of the Southwest, Midland Texas, "Alfred Morang - A Retrospective Exhibition," February 19-April 8, 1994. HID01801242017
Heritage Auctions
Nov. 12, 2020
Alfred Gwynne Morang (American, 1901-1958) Fall Colors - Descending, 1947 Oil on
Est: $800 - $1,200
Alfred Gwynne Morang (American, 1901-1958) Fall Colors - Descending, 1947 Oil on panel 7-1/8 x 9-5/8 inches (18.1 x 24.4 cm) Signed lower right: 47 / Alfred Morang Bears signature, title, date and inscription on the reverse: Alfred G. Morang (1901-1947) / "Fall colors- Descending" 1947 / oil on board 7 1/8'' x 9 11/16" / signed : lower right / Directly from the artist by Santa Fe friend, remained in collection until consigned by same to the Jamison Galleries (for sale) / May 1991 PROVENANCE: The Artist: Private collection, Santa Fe, New Mexico, acquired from the above; Sale: Jamison Galleries, Santa Fe, New Mexico, May 1991; Private collection, Fayetteville, Arkansas. HID01801242017
Heritage Auctions
Nov. 12, 2020
Alfred Gwynne Morang (American, 1901-1958) Bridal Bouquet, 1941 Oil on canvas la
Est: $800 - $1,200
Alfred Gwynne Morang (American, 1901-1958) Bridal Bouquet, 1941 Oil on canvas laid on panel 14 x 10 inches (35.6 x 25.4 cm) Signed and dated lower right: Alfred Morang / 41 Bears signature, date, title, inscription on reverse: Alfred Morang ((1901-1958)) / "Bridal Bouquet" 1941 / oil on canvas laid on panel 13 3/4'' x 9 3/4'' / Signed: Lower Right PROVENANCE: The Jamison Galleries, Santa Fe, New Mexico. HID01801242017
Heritage Auctions
Nov. 12, 2020
Alfred Gwynne Morang (American, 1901-1958) The Dance, 1947 Oil on canvas 25 x 1
Est: $1,500 - $2,500
Alfred Gwynne Morang (American, 1901-1958) The Dance, 1947 Oil on canvas 25 x 18 inches (63.5 x 45.7 cm) Signed and dated lower right: 47 / Alfred Morang Bears signature, title and inscription on the stretcher: Alfred Morang ((1901- 1958)) / "The Dance" 1947 / Oil on canvas / 25" x 18" PROVENANCE: The Jamison Galleries, Santa Fe, New Mexico. HID01801242017
Heritage Auctions
Nov. 12, 2020
Alfred Gwynne Morang (American, 1901-1958) Gold Mountains Oil in board 16 x 20
Est: $2,500 - $3,500
Alfred Gwynne Morang (American, 1901-1958) Gold Mountains Oil in board 16 x 20 inches (40.6 x 50.8 cm) Signed lower right: Alfred Morang Signed, titled, and inscribed at length on the reverse EXHIBITED: The Jamison Galleries, Santa Fe, New Mexico, "The Paintings of Alfred Morang and Gold and Bronze Castings by Mikael Redman," August 12-18, 1973. HID01801242017
Heritage Auctions
Jun. 07, 2020
ALFRED GWYNNE MORANG (American 1901-1958) A PAINTING, "Porch on the Red House,"
Est: $1,000 - $2,000
ALFRED GWYNNE MORANG (American 1901-1958) A PAINTING, "Porch on the Red House," oil on pressed pulp board. 10" x 13" Provenance: Private Collection, Washington State
Simpson Galleries, LLC
Jun. 07, 2020
ALFRED GWYNNE MORANG (American 1901-1958) A TWO SIDED PAINTING, "Adobe Farmhouse Through the Trees," AND "Three Surreal Women in Landscape," 1947,
Est: $2,000 - $4,000
ALFRED GWYNNE MORANG (American 1901-1958) A TWO SIDED PAINTING, "Adobe Farmhouse Through the Trees," AND "Three Surreal Women in Landscape," 1947, oil on two sides of one board, one side signed and dated L/R "Alfred Morang '47." 7 1/2" x 9 1/2" Provenance: Private Collection, Washington State
Simpson Galleries, LLC
Jun. 07, 2020
ALFRED GWYNNE MORANG (American 1901-1958) A TWO SIDED PAINTING, "Village in Mountain Landscape," AND "Crouching Nude,"
Est: $3,000 - $5,000
ALFRED GWYNNE MORANG (American 1901-1958) A TWO SIDED PAINTING, "Village in Mountain Landscape," AND "Crouching Nude," oil on two sides of one board, landscape signed L/R, "Alfred Morang" and verso a nude female figure painted with mixed medial oil and pencil. 11 3/4" x 16" Provenance: Private Collection, Washington State
Simpson Galleries, LLC
May. 30, 2020
Alfred Morang, Untitled (Figure on Road to Adobe), 1934
Est: $500 - $700
Alfred Morang (1901 - 1958) Untitled (Figure on Road to Adobe), 1934 watercolor on paper inscribed, signed and dated lower right: For Clyde / Alfred / Morang / 1934 Dimensions: 6 1/4 x 3 1/2 in Provenance: A Private Family Foundation* *All proceeds of sale from this artwork benefit a private charitable foundation (501c3) dedicated to supporting local arts communities and families in need.
Santa Fe Art Auction
May. 14, 2020
Alfred Gwynne Morang (American, 1901-1958) Cocktail Party, 1948 Oil on Masonite
Est: $2,000 - $3,000
Alfred Gwynne Morang (American, 1901-1958) Cocktail Party, 1948 Oil on Masonite 23 x 19-1/4 inches (58.4 x 48.9 cm) Signed and dated lower right: Alfred / Morang / 48 PROPERTY FROM THE BRADBERRY FAMILY CHARITABLE FOUNDATION, FAYETTEVILLE, ARKANSAS PROVENANCE: Jamison Galleries, Santa Fe, New Mexico; Private collection, Fayetteville, Arkansas, acquired from the above, 1984. HID01801242017
Heritage Auctions
Jan. 23, 2020
ALFRED GWYNNE MORANG, American (1901-1958), The Village, oil on canvasboard, unsigned, 12 x 16 inches
Est: $1,200 - $1,500
ALFRED GWYNNE MORANG American (1901-1958) The Village oil on canvasboard, unsigned 12 x 16 inches Provenance: Private Collection, Santa Fe, New Mexico; Private Collection Wilmington, Delaware. Other Notes: Tags: oil paintings, listed artist, 20th century, landscape
Shannon's
Jan. 12, 2020
Alfred G Morang "Three Girls & Still Life"
Est: $250 - $500
Alfred Gwynne Morang (1901 - 1958) Alfred Gwynne Morang was active/lived in Maine, New Mexico. Alfred Morang is known for modernist-leaning landscape, genre, illustrator. Medium: Original Linoleum Block Print Size 6 x 8 Frame 14 x 17 Date 1959 Expect to pay $800 and up in a gallery!
Four Seasons Auction Gallery
Dec. 12, 2019
Alfred Gwynne Morang (1901 - 1958)
Est: $2,000 - $3,000
Oil on board, "Guadelupe Church, Santa Fe," SDLL, '45. Modernist landscape of a Church and courtyard. 12"h x 16"w and 22"h x 26"w framed
Alderfer Auction
Dec. 08, 2019
Alfred Morang, Untitled (Dancing Figure), 1950
Est: $400 - $600
Morang, Alfred (1901 - 1958) Untitled (Dancing Figure) mixed media on paper 14 3/4 x 12 inches 22 1/2 x 18 3/4 x 1 inches signed and dated lower right: Alfred Morang / 1950 Private Collection, New Mexico
Santa Fe Art Auction
Dec. 08, 2019
Alfred Morang, Untitled (City Scene), 1954
Est: $2,000 - $4,000
Morang, Alfred (1901 - 1958) Untilted (City Scene) ink, watercolor on paper 8 3/4 x 11 1/2 inches 14 3/8 x 16 3/4 x 3/4 inches signed and dated lower right: Alfred Morang 54 Private Collection, New Mexico
Santa Fe Art Auction
Dec. 08, 2019
Alfred Morang, Street Scene
Est: $200 - $300
Morang, Alfred (1901 - 1958) Untitled [City Street] ink on paper, 3 3/4 x 3 1/8 inches 11 x 10 x 3/4 inches signed and dated lower right: A Morang Private Collection, New Mexico
Santa Fe Art Auction
Nov. 09, 2019
Alfred Morang, Untitled (Two-Sided)
Est: $4,000 - $8,000
ALFRED MORANG (1901 - 1958) Untitled (Two-Sided Bar Scene/Portrait) , 1944, 1945 oil on canvas signed and dated lower right (portrait side): ALFRED / MORANG 1944 signed and dated lower right (bar scene side): ALFRED / MORANG 45 Dimensions: 19 1/4 x 16 3/8 inches Provenance: Private Collection, Texas
Santa Fe Art Auction
Nov. 09, 2019
Alfred Morang, Flower of the Evening
Est: $1,500 - $2,500
ALFRED MORANG (1901 - 1958) Flower of the Evening oil on board signed lower right: A. MORANG Dimensions: 24 1/2 x 18 5/8 inches Framed Dimensions: 28 1/4 x 22 3/4 x 2 inches Provenance: Private Collection, New Mexico
Santa Fe Art Auction
Nov. 09, 2019
Alfred Morang, New Mexico Landscape
Est: $2,000 - $4,000
ALFRED MORANG (1901 - 1958) New Mexico Landscape watercolor and gouache on paper signed lower right: Alfred Morang Dimensions: 11 1/2 x 15 5/8 inches Framed Dimensions: 20 3/4 x 24 3/8 x 1 inches Provenance: Private Collection, New Mexico
Santa Fe Art Auction
Nov. 09, 2019
Alfred Morang, New Mexico Landscape
Est: $1,500 - $2,500
ALFRED MORANG (1901 - 1958) New Mexico Landscape watercolor on paper Dimensions: 10 1/8 x 14 inches Framed Dimensions: 18 1/4 x 21 3/4 x 3/4 inches (framed) Provenance: Private Collection, New Mexico
Santa Fe Art Auction