The original nitrate negatives are usually one of these sizes--a 35mm or 2 1/4 inch roll film or a 3x4 or 4x5 inch sheet film. Some 5x7 and 8x10 inch sheet films were also used.

The 35mm film was cut into 5-frame strips before it came to the Library.

We store each strip and sheet of film in its own archival quality paper envelope.

Archival boxes provide additional protection for the negatives.