A black wooden rectangular box with a label on top. Inside this box there is a thermometer with a scale going from 10 to 30…
A black wooden box with label. Inside the box there is a wooden ruler with 0-7.75 inches on one side and 0-20 centimeters on the…
A steel cylinder is capped at either end by two conical steel caps. One end has an additional steel cap affixed with a curved metal…
A wooden box with a rotating semi-translucent piece on one end (shaped like an elbow joint) for light to enter. Around the mirrored piece is…
The ammeter is set in a square, wooden, varnished stand, with a simple flat base and a vertical wood panel with the ammeter’s case set…
The ammeter is set in a square, wooden, varnished stand, with a simple flat base and a vertical wood panel with the ammeter’s case set…
A cylindrical cardboard thermometer case, with a cylindrical lid that slides on.
Painted black rectangular box with open sides. The top of the box is pyramid-shaped, and detachable. The top of the pyramid narrows to a cylindrical…
A metal box with a brown painted surface that has metal plate, also brown, on top that can tilt. On one side of the metal…
The top of the plate has a lid which is secured by two turning stops. Inside of the lid there is a metal prong. The…