Plastic covered slide rule with a ruler on one edge and sine function on the other. On the back there are some instructions and tables. Comes in cardboard box. Made by CASTELL, on box in gold lettering.
Cardboard box of camera parts: 2 film holders, 1 brass lens holder (?), brass tube, 2 brass disks and brass screws. Wooden film holders have sliding apertures and unfold for easy access. They are marked, possibly referring to Aberdeen University…
Wooden aperture and film holder with sliding aperture size and position. On edge, small disk reads "3cm" and engraved into the wood is the maker. There is a steel rule for the camera position from -5 to +5 in unit increments.
A spot galvanometer for the Hilger Spekker Absorptiometer H760301. Analogue display from 0-16 in unit divisions. On top, plate reads "Cambridge Instrument Co. Ltd. England" and bears the company logo.
Squat, black plastic casing, with name of maker in brass and encircled by brass ring. 2 terminals, a clamp and free switch and a place for the power cable. Scale runs from -8 to +8 in 0.2 intervals, numbered every 1unit. Number on top.
