Aero camera for 4 x 5 inch plates in Houghton Butcher type P7 magazines, transferred from one to the other by shutter cocking lever. With fabric focal plane shutter by Houghton-butcher adjustable slit with 0- 1 2/3 inches. Small moveable arrow in corner of film plane. Provision for watch, pocket type with 24v lamps projecting image into the corner of the plate. Provision for external power operation. Lens missing. No. 214. Williamson Kinematograph Co.