While the size of many of the prints were smaller than 4x5, in essence they were still "large" format, if one was to use camera type as the main criteria and the second criteria being individual negatives (as opposed to rolls which did not exist at the time.). I believe many of the small images were made in rather large cameras that had multiple lenses...and that the film was also large with multiple images on each that were then cut down after processing.

Vaughn