Browse Items (3471 total)

Wooden set of 8 drawer, 4 of which have dividers with grooves for holding lenses. The drawers hold a large variety of lenses; over 200 lenses in total as well as mirrors, diffraction gratings, a liquid prism and a lens power tester.

Brass cylindrical torpedo style switch. The top domed section is polished brass, the bottom section is glazed black. Underneath there is wording very difficult to make out reading "No. 4 VITREOUS, 1347 184 NO.2660".

a circular glass tray with a smaller diameter brass disc connected through the centre to a brass tapped inlet. A hollow tube fitting this tap is severed.

Brass extending telescope with holder, no stand. Manufacturers name engraved on side but underneath the holder.

Set of mechanical pulleys in mahogany frame.

Motor driven metal wheel with 30 rectangular slits attached to a smaller reduced speed cog and bell on a solid cast iron base. Small plate with "W. G. PYE & Co. Cambridge, London".

Hand held brass telescope with sliding focus adjustment. Likely to be telescope from a spectrometer.

Brass stand on circular brass base with adjustable arm at top holding a brass mounted 6 layered 60 degree prism. The arm can only be adjusted in the angle of the prism, not the height.

Small concave mirror in brass frame on brass stand. Now has lost the silvering and is just dirty glass. Engraved on base is makers name and location.

Vernier calipers in box lined with blue velvet. Divisions 1', 1/5', 1/10' and vernier 0-50