Filter holder with wooden handle

Made:
1850-1875 in Paris
maker:
J G Hofmann

Brass filter holder (?), fitted with steel shaft and wooden handle by J. G. Hofmann, Paris, 1850-1875.

Details

Category:
Optics
Collection:
Sir Henry Wellcome's Museum Collection
Object Number:
1983-315
Materials:
steel (metal), brass (copper, zinc alloy) and wood (unidentified)
Measurements:
overall: 20 mm x 260 mm x 38 mm, Wt. 0.126kg
type:
filter holder - optical
credit:
Wellcome Trust