Blank negative digitized to understand the color change in the B&W Glass plate during these years. Date of original material: unknown. Size of original print/negative: 3 ½ x 2 ½ inches (2B). Format of...

Blank negative digitized to understand the color change in the B&W Glass plate during these years. Date of original material: unknown. Size of original print/negative: 3 ½ x 2 ½ inches (2B). Format of original material: Glass plate black and white negative.