A glass valve or cathode with model printed on the sticker. It is cylindrical with 8 pins from it's base and a large metal cylinder around the top. Part of a massive collection of valves in a cardboard box.
Cat skin, cream, ginger, brown and black markings on fur; one patch on rear side, used for electro statics. Used in lecture demonstrations for generating charge by rubbing
Specimen of charred wood, in a glass test-tube, cottonwool stopper, mounted on a card label: 'Fragment of charred wood, part of Cash Box of house excavated at Pompei 1828'. Inscription: Fragment of charred wood, part of Cash Box of house excavated at…
Copper and fragment of charred wood from cash box, found when excavating house in Pompeii, Sept. 1828, mounted on card with hand-written label. Copper & wood of cash box from house excavated Sept 1828 Pompei