The Negatives series consists of images that primarily detail Schramm equipment models and machinery parts, construction projects utilizing Schramm products, and Schramm product advertising. There are also images of Schramm employees, product dealers, visitors, and various company personnel, as well as documentation of Schramm headquarters and Schramm-affiliated storefronts. There is a photograph/negative numbers index on index cards and in a three-volume ledger set. The negatives are primarily 4x5 in., but also include 35mm, and 120 film negatives not found in the print series, ranging in date from 1944 to 1990. The series also includes negative 35mm film roll canisters and positive 35mm film roll canisters, ranging in date from 1936 to 1960. NOTE: This series is not processed; access to these materials is at the discretion of the reference archivist.