Lot 497: Two Sixteenth-plate Daguerreotype Portraits and a Silhouette, the daguerreotypes depicting a young man and woman, in a thermoplastic Un

Two Sixteenth-plate Daguerreotype Portraits and a Silhouette, the daguerreotypes depicting a young man and woman, in a thermoplastic Union case, (case separated at hinge); the hollow-cut silhouette of a young man by William M.S. Doyle (American, 1769-1828), signed "Doyle" under left side of bust, (toning, two tears), approx. 1 1/4 x 2 1/4 in., mounted in a gilt-brass frame with brass mat.