This is a large wooden box with an attached smaller wooden box at the rear of the object with six small slots to store small…
Tall cylinder topped by a long, narrow, 20 cm projection; mounted on circular base on three adjustable metal legs. Tall cylinder contains a glass window…
Black square plastic box with two plastic and metal circuit connections on one side. Plastic adjustable dial on one side. Top face plate is screwed…
Black plastic box with two metal circuit connectors at the top side. Plastic adustable dial and leather handle on one side. Two sets of feet…
Wooden L-shaped instrument with three wooden curves stemming from the top to the bottom of the L. The curves are bracketed to the frame at…
Long wooden rectangular box with three holes on each long side of the box. On the top is attached two metal strings which are connected…
Conical metal tube with tapered end mounted on a wooden platform attached to a transformer and a variable resister. The tube contains a bulb and…
Two Strips of paper containing eight 1.5 cm diameter holes over coloured plastic, a different color for each hle. In each strip the holes are…
This instrument consists of a metal tube which narrows to a cone shape at one end. The narrow end is rounded and opens to a…
A pair of 12 cm glass bulbs are mounted on a turned wooden base. The bulbs are joined by a T-shaped glass tube that runs…