31401994negativesPT2026-03-30 20:48:05UF31401995negativeNDUF31401996photographic negativesNDUF31401997photonegativesNDBT31360566photographs by formPTNT31431525internegativesPTNT31431527color separation negativesPTNT31431542halftone negativesPTNT31431547[negatives by color]PTNT31431548[negatives by process]PTNT31431549paper negativesPTNT31431552glass plate negativesPTRT31452711negative printsPT