Wooden Optical Bench

Comprising a wooden base board 1.6 m x 140 mm with a 1.5 m scale divided in millimeters plus six sliding bases 100 x 50 mm each with engraved index line metal pillar and locking screw. The following accessories are: - 1 lamp house with a white 240v 15 watts lamp,1- white metal object screen 75mm diameter with gauze,1- holder for lenses 38mm diameter,1- white metal receiving screen 100 x 75mm with slot for squared paper screen on the reverse,1- object needle mounted in 6mm brass rod,1- plane mirror in a metal frame 10 x 75mm. Each of the accessories is mounted on a 6mm rod which fits into the stands giving an optical height approximately 125 mm above the baseboard.