Optics

Lantern slides Solar & Lunar Eclipses

Lantern slides Earths Rotundity & Tides

Lantern slide of the Solar System

Lantern slide Signs of the Zodiac

Lantern slide Sun & Earth

Asembi DF by Carl Zeiss Jena

4 x 24 Huet binoculars

BBT Navigation light

23 x 60 Telescope by SOM Paris

Pocket spyglass

Ross 7 x 50 binoculars

A four-way railway light

Precision diffraction grating by Bausch & Lomb

Carl Zeiss Jena 80 mm Telescope

Periscope by OPL

10 x 80 marine binoculars blc

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