Browse Items (3436 total)

Brass pendulum for use with ABDNP201515a

Brass direct vision spectroscope with clamp for a stand and variable focus. Part of set of miniature optical instruments.

Metal cylindrical holder on wooden base with metal pointer and ball bearing to ease movement along optical bench

Metal cylindrical holder on wooden base with metal plate along side to ease movement along optical bench

Piece of very thick fibre optic cable. No sheathing, not very flexible.

Tall paper covered wooden screen on top of a wooden base with groove for optical bench and 2 metal pointers on base. 3 cut sheets of paper (backs of old forms) have been used and slotted in to the built in grooves.

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

brass stand with large round metal lens holder.

wooden frame with 2 parallel lenses of different sizes.

roll of negatives in cylindrical box and is labelled