Keystone Criterion 16mm movie camera

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A photo of a movie camera that is brown in colour with a bright silver lens at the front. The lid is off and to the side allowing you to see the reels within the case.
https://www.nfsa.gov.au/sites/default/files/2025-07/Image-Keystone-Criterion-16mm-movie-camera-model-A-7-439885.jpg
Title:
Keystone Criterion 16mm movie camera
NFSA ID
439885
Year
1936

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Originally introduced in the mid-to-late 1930s, the Keystone is a sturdy, spring-motor-driven camera that takes double-perforated 16mm film. The Keystone Manufacturing Company was founded in 1919 in Boston, Massachusetts, by Edward M Swartz, Isidore Marks, Benjamin Marks and JM Weisman. The company produced a range of products, including 16mm and 8mm film cameras and projectors, and metal and wooden toys.

In 1936, Keystone introduced the Model A-7, a 16mm camera powered by a spring motor. It was capable of operating at seven different speeds – including 8 fps (frames per second), 16 fps and at slow motion. It was designed for both versatility and ease of use.

1930s