A full-plate tintype portrait of an unidentified couple, housed in a thermoplastic case whose cover depicts the landing of Christopher Columbus, places this lot firmly in the Civil War era. The thermoplastic case format was produced in the United States from the mid-1850s through the 1870s, and the figural Columbus scene aligns with a documented genre of patriotic and historical case designs that surged in popularity during that period. The photographer is unidentified and no studio imprint is visible.

The woman stands at center in a wide, full-skirted light dress with off-shoulder sleeves and a dark button placket at the bodice, her hair swept up; the bearded man beside her wears a dark frock coat and rests one hand on the back of a carved chair. A patterned floor cloth is visible beneath them, and a draped studio backdrop fills the upper right. The gilt mat framing the tintype features an elaborate cast floral and scroll border.

The thermoplastic case cover carries a richly detailed high-relief scene of Columbus and his armored crew planting a banner on shore, surrounded by a border of sea creatures, fruit, ships in oval cartouches, and foliate scrollwork. The interior lid is lined with crimson embossed velvet, and the case is secured with brass hinges visible at the spine.