Master Camera for the Rapid Selector with keyboard enabling the keying and entering indexing data along with the image
Creative Commons LicenseJeremy Norman Collection of Images - Creative Commons

The Master Camera for the Rapid Selector appears to have had a keyboard that enabled the keying-in of indexing data along with the image. In the left margin of the photograph the watermark of Kodak Velox Paper, a type of photographic paper, shows through.

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