Pair of folding opera glasses binoculars with collapsible, nikel-plated brass frame, 'MARS' model, patented, French, 1890-1920.
Details
- Category:
- Optics
- Collection:
- Sir Henry Wellcome's Museum Collection
- Object Number:
- 1983-318
- Materials:
- brass (copper, zinc alloy), nickel plated, steel (metal) and glass
- Measurements:
-
overall (assembled): 65 mm x 100 mm x 70 mm,
overall (folded): 12 mm x 100 mm x 85 mm, Wt. 0.107kg
- type:
- opera glasses and binoculars
- credit:
- Wellcome Trust