Two roughly spherical glass bulbs are connected by a long straight narrow tube. The two bulbs have protruding bulbous ends that are fitted into holes…
A tall cylindrical glass container with an open top. The container is formed out of two tubes, one slightly smaller than the other, connected at…
A glass cup resembling a wine glass. The bulb of the glass is formed of two glass hemispheres, a smaller one inside a larger one;…
A very large round-faced voltmeter is set in a wooden stand. The face has an arc shaped window behind which is visible a scale labelled…
Glass slides for the Multiple Image Projector (2009.ph.117), contained inside a wooden box. The box has a hinged lid with two rotating hook latches to…
Wheatstone Bridge Potentiometer. A wooden box with a brown Bakelite top with dials and rods fixed on top of it. On two sides (opposite of…
A long rectangular metal plate attached to a large tuning fork mounted parallel to the plate. At one end of the rectangular metal plate, the…