Toronto. Not all minicams used 35mm movie film bits – some used paper-backed Kodak roll film. I once had a few of these delightfully compact little Kodak gems.
This ad by Kodak in 1924 was reproduced on the back of our journal issue 12-4. At the time we had an arrangement with Kodak Canada to pay us a modest fee for running period Kodak ads of interest to our members on the back page of each issue.
Using the special attached stylus, the snap-shooter could write a brief line on the negative to identify the location, content, etc. (before digital files and EXIF data). The metal stylus scraped off the red paper backing exposing the negative and writing as a dark latent image turned white on the print (contact printing or enlarging).
If you are missing one of these guys in your collection, visit our fall fair and auction. You may find one there (or another item to add to your collection of photographica).