Browse Items (3473 total)

wooden frame with 2 parallel lenses of different sizes.

Farnell BINARY modules in ABDNP:201911a

brass stand with large round metal lens holder.

black wooden frame containing 'magic' mirror with terminal and wires to connect to 25volts; switch to alter image reflection

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

Plane table, with compass, sector, sights, and stand . A plane table compass by G. Adams, almost identical with the extent of this set, is in the Whipple Museum and is illustrated in their catalogue of surveying instruments (Catalogue 1, The Whipple…

a cylindrical spirit level with square hook at each end possibly for attachment to a horizontal line