Folding opera glasses, French patent, in velvet case
1850-1950
Folding opera glasses, French patent, in purple velvet case, unsigned, Europe, 1850-1950
Details
- Category:
- Optics
- Object Number:
- 1990-286
- Materials:
- glass, leather, wood (unidentified), brass (copper, zinc alloy) and velvet
- Measurements:
-
overall: .2456kg
case: 122 mm 50 mm,
opera glasses: 11 mm 35 mm,
- type:
- opera glasses, binoculars and instrument case
- credit:
- Christie's South Kensington Limited
