Glass Negative - Five Men in Aprons on Roof; circa 1920s; Black and white 1/6th plate glass negative of five men in full length aprons. One; at the back; is the man who is smoking in the other two images of this group. The men are standing near two chimneys or vents; likely on a roof. The provenance of the image is unclear but it was housed in Kodak's corporate museum. collection of products; promotional materials;