Small Gregorian reflecting telescope
Small Gregorian (hand?) reflecting telescope by B. Martin, London, date about 1760
- Measurements:
-
overall: 50 mm x 230 mm x 60 mm, , .505kg
- Materials:
- copper (alloy) , glass and speculum (alloy of copper and tin)
- Object Number:
- 1918-146 Pt1
- Image ©
- The Board of Trustees of the Science Museum