1862 (patent) Patent Model of a Mold for Making "Oreo" Daguerreotype Cases
Patent model Cowan's Auctions, Inc American Historical Ephemera and Photography: Timed Auction, 14 September 2020, Lot: 116
Patent model for circular screw-top circular "oreo" daguerreotype case molds by J.L. Baldwin. Wood construction, 4 in. dia., 5 in. ht. Patented February 11, 1862. Original tag numbers this patent 34.344 and reads, "J.L. Baldwin / Molds for Making Daguerreotype Cases / Patented Feb. 11 / 1862." Verso reads, in part: "Patented Rec. Nov. 26 '61."