Three Dall null testers on two stands, plus lamp and box of accessories Three Dall null testers on two stands 1950-1975
Two optical pinholes, plus test lamps, overhang adjustment, box of turrets Two optical pinholes 1950-1975
Aluminizing plant with transformer. (Air speed indicator found to be radioactive and stored separately so 1987-528/12 Pt1 and 1987-528/12 Pt 2 created). Aluminizing plant with transformer 1950-1975
Miscellaneous experimental and lens-grinding apparatus in box Experimental and lens-grinding apparatus
Two self-marking Knife-edge Foucault testers, plus microlens light source, bag of optical tubes, box of accessories, box of extending arms, box of "oddments" Two self-marking Knife-edge Foucault testers 1950-1975
Tripod mirror-grinding table with glass top, laps, bevelling tools, grinding compounds, 7-inch Maksutov mirror-and-tool pair, 11-inch composite Cassegrain-Maksutov blank Tripod mirror-grinding table with glass top 1950-1975