Parts of the Gem Apparatus
Lancaster and Sons
Category
Photographic technology
Date
1880
Materials
Brass
Measurements
42 mm (Height); 27 mm (Diameter)
Collection
Fox Talbot Museum, Wiltshire
NT 1525710.3
Summary
Parts of the Gem Apparatus. The main part is the control knob and bracket for the focusing and the rack to which it connect. There are also two sealing brass rings, a washern and a spring whose function is unclear.
Provenance
Donated on 3/10/2019 to the Fox Talbot Museum by D. Tonge.
Makers and roles
Lancaster and Sons, manufacturer