Browse Items (3473 total)

glass hydrometer, scale1400-1600, lead weighted bottom bulb. In red cardboard box

glass specific gravity hydrometer, red lead weighted, scale 1200 to 1300. In cardboard tube

one of a pair, circular base weighted with lead, the vertical tapers upward from a bulbous bottom, terminating with a wing nut for holding a telescopic inner section of glass rod

a glass apparatus dome cover with green velvet covered rim

glass dome with brass neck piece and large brass knob

Pair of lens holders set in metal frame with further lens holders. Possibly from opticians

Hand blown wide oval glass jar. Base rim is added glass ring

glass hydrometer, scale1800-2000, lead weighted bottom bulb. In red cardboard box

spherical light bulb on rubber holder with two rubber clad wires coming from it.