Browse Items (3473 total)

a cylindrical glass laboratory jar with rimmed top and base. Internally ground top for glass stopper.

Glass density bottle; etched onto bottle '1000 Grains, 60 F'; in custom-made black-painted tin; packed in cotton wool; adjustable brass weight with lead shot in lid

Pair of zamboni piles stored in sealed glass tubes with corks; completely sealed units

glass insulator with wooden handle with brass tapped ferrule; possibly for handling electrically charged objects

Red painted wooden cylinder, part of whriling body demonstration using whirling stand (that we don't have). Small metal hook at top with attached string

outer tube terminates in a large cylindrical bulb and U bend, the upper part has an outlet junction. The inner tube is held in place by a cork. With ABDNP200372a these items are in a cardboard box marked Thermostats

straight walled glass vessel, silvered half way up the glass and wound with five turns of wire as an electrical contact. A brass rod terminated in solid copper wire filaments is suspended from a three armed cap. Silver filings and debris are in the…

Metal Morse code taper with plastic base and finger knob. Engraving moulded into underside, possibly ex forces?

a glass sealed tube with three liquids of different viscosity's. In a red leather covered wood cylinder

Brass mounted pair of lenses fixed to a wooden block. Possibly a piece of a telescope. With leather lens cap.