Stereoscopic Camera Lizars Challenge Model B, c. 1905 Lizars, Glasgow. For plates 16.5 x 7.8 cm, with shutter focal plane incorporated, with internal partition bellows, Ross pair of targets not 4½ inches. 56029 and no. 56030, rear screen approach and an unusual pair of leather pads that cover the lens when the camera is closed. Crystal, shutter and shutter fabric are in good condition, the target plate has been replaced.