The "STOP" is a French box camera. It really is just based on a cardboard box, with card internal parts too. It has an Objectif Menisque (McKeown and a post at the Camera Collector forum thread both show examples as pictured on the far right here, with this phrase printed below the lens), and a single-speed shutter, and makes twelve 6x6cm exposures on a roll of film. It has a simple pull-up wire-frame finder and a red window for film advance control.
- McKeown, James M. and Joan C. McKeown's Price Guide to Antique and Classic Cameras, 12th Edition, 2005-2006. USA, Centennial Photo Service, 2004. ISBN 0-931838-40-1 (hardcover). ISBN 0-931838-41-X (softcover). p906.
- "STOP" thread posted at the 'Camera Collector' web forum.