Browse Items (3436 total)

two brass discs the upper suspended by a movable rod above the lower, possible to move electrical charge to demonstrate capacitance. The upper disc is held by an insulated pillar and curved brass rod

glass dome with glass knob top

Wooden hinged box with metal handle. Card inside reads "Original box for 'lefebore's level". Empty. Storage for optical instrument

a glass mercury specific gravity hydrometer with paper scale insert 0.700 to 0.800 for light liquids. The bulb is separated from the float by a short length. In cardboard cylinder

glass hydrometer, scale 0-100, mercury weighted bottom bulb, brine percent

Small cylindrical box of 4 tiny mirrors individually wrapped in tissue paper. Hand written on box.

a hand blown cylindrical glass laboratory jar with rimmed top and base.

in wood, small trestle table or stool with crossed supports at each end, brass screws, possibly for equipment support

Small wooden drawer of miscellaneous items including brass tweezers, rotating aperture selector, eyepiece, a lens and screws. Drawer has an ivory handle and used to hold slides or lenses as grooves set in wood.

wooden stool with 4 wooden feet