Complete with integral lamp, transformer and scale for general purpose use. Sensitivity: 510 mm / microampere; scale from 5 - 0 - 5 in steps of 0.1. In solid wooden box with company logo on the front. Can be used for measuring voltages.
Convex lens in brass holder with ball joint attachment to brass stand which itself is attached by ball joint to the base, illuminates microscope objects with use of a side light
Metal disc with 5 circular holes around it. Stuck into 3 of the holes is a cork with a metal rod through it. The metal rods meet up in the centre and are quite long. The whole device can be held by a handle on the end of a shorter rod at the top…
