Aero camera for 4 x 5 inch wooden magazines by Houghton-Butcher and Thornton-Pickard. Plates transferred from one to the other by shutter cocking lever. Fabric focal plane shutter by Williamson Manufacturing company. A, ref. 14A/84. Slit width adjustable 0- 1 1/2 inches. Hand operated, provision for external power. Lens missing. The Williamson Kinematograph Co Limited.