-
Electric Motor and 2 Armature Models, c. 1910...
-
Electric Motor with Chromic Acid Cell by Erns...
-
29 Early Carbon Filament Bulbs, 1900 onwards...
-
Very Rare Nernst Lamp...
-
2 Small Electric Motors...
-
Froment's Electric Motor...
-
3 Special Bulbs in Triple Mount, c. 1920...
-
Spark Gap Induction Coil...
-
Magneto-Electric Shock Generator, c. 1880...
-
2 Interesting Electric Motors, c. 1910...
-
High-Tension Transformer, c. 1910...
-
Electromagnetic Motor, c. 1880...
-
Early Door Alarm System with Glass Battery, c...
-
Coincidence Rangefinder Wild TM2, 1966...
-
Pocket Level Theodolite by Georg Butenschön, ...
-
Group of Measuring and Surveying Instruments...
-
English Table Telescope by Harris, c. 1850...
-
2 Posters for Bausch & Lomb, c. 1936...
-
Vixen 30 x 125 Binocular Telescope...
-
3-inch Refracting Telescope by Bardou, mid 19...
