Wollaston-type optometer
- Made:
- 1825-1835
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Science Museum Group
© The Board of Trustees of the Science Museum
Wollaston-type optometer, with graduated ebony bar traversed by ivory disc engraved with 15 dots and words 'COUNT THE DOTS' 'MY SIGHT', British, c. 1830
Details
- Category:
- Optics
- Object Number:
- 1954-269
- Materials:
- wood (unidentified), ivory, metal (unknown), copper (alloy), brass (copper, zinc alloy) and glass
- Measurements:
-
overall: 100 mm x 285 mm x 35 mm, , .07kg
- type:
- optometer
- credit:
- National Maritime Museum
