Browse Items (3473 total)

Lined box containing slits and pinholes for optical bench work.

One of 2 Oblong Mullard light bulbs, very fine filament wire in twisting pattern and 4 pins for power connection.

Brass stand on stone base with large circular metal lens holder and small plate with engraving on it.

Large 2 lens objective from a astronomical telescope. Steel casing. Around lens is inscription.

cardboard box containing fabric mantle; sticker on top of box reads: "Cerium Oxide". This is the standard recipe rare-earth gas mantle.

Set of 12 large negatives on a roll.

Light bulb with very thin filament wire stretched vertically 4 four times. No markings. Screw fitting.

rectangular mirror in metal frame with brass 'joint' at back allowing it to be angled

Old projector lamp housing but now modified to hold pointolite light bulb. Separate starter with instructions for starting. On side of casing there is the makers plates.

Black plastic cone shaped item with 2 telescope ends and a window with a scale from 800 to 1250 degrees Celsius in 5 degree divisions labelled every 50. Complete with cables and housed in original leather case.