mounted on three brass adjustable feet, a sub rectangular black wooden base holds two upright hinged wood plates. The plates each have terminals connecting to flat coils. On one side is a viewing window into the centre of the plates. A hollow rod…
Black conical shaped plastic casing with window showing temperature scale ranging from 800 to 1250 degrees Celsius. Also through window can be seen UK patent number; "636544", the US patent number; "2750837" and the German "patent pending" notice.…
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 mirror galvanometer with small upper and larger lower cylinders in lacquered brass. The lower cylinder is surrounded by an brass ring with three brass terminals. Three adjustable brass feet are fitted to the ring. The larger cylinder has a glass…
Telescopic level, all brass on adjusting table with 4 screwed feet. Is this the item in the 1823 inventory ' leveling instrument, Miller Edinburgh pounds 6.16.6 ' (C501?).
Specimens for observing strain-induced anistropy in polarised llight. 3 wooden frames each inset with a anisotropic glass specimen of different shape; flower, circular, octagonal shapes.
Wooden box with tube and lens form one end and "bellows" with a rectangular opening at the other. Turning wheel that opens and shuts aperture on side of box and handle to slide lens back and forth on tube with mm scale underneath marked every 5 mm…
