THE PHOTOGRAPHIC ARTISTS CO-OP SUPPLY ASSN. LTD., LondonA half-plate brass and mahogany tailboard camera no. 735 with an Aldis Anastigmat lens in a roller blind shutter, maker's label The Photographic Artists Co-Op Supply Asstn. Ltd., 43 Charterhouse Sqre, London EC and three double darkslides, one stamped 735.