"Binoscope" spectacles with adjustable focus and sunglass lenses, design registered no. 898 081 in original box, Salco, Hong Kong, c.1950
Details
- Category:
- Optics
- Object Number:
- 1979-817
- Materials:
- cardboard and plastic (unidentified)
- Measurements:
-
overall: .064kg
box: 36 mm x 150 mm x 45 mm,
spectacles: 37 mm x 149 mm x 45 mm,
- type:
- sun-glasses
- credit:
- Smart, J.
