Sectioned Ramsden type eyepiece

Made:
1870-1872 in London
maker:
William Ladd
and
Jesse Ramsden

Brass eyepiece, Ramsden type, with sectioned draw-tube barrel, by Wiliam Ladd, London, 1870-1872.

Details

Category:
Optics
Object Number:
1872-17
Materials:
glass and brass (copper, zinc alloy)
Measurements:
overall: 95 mm 31 mm, .039kg
type:
cut-away object and eyepiece
credit:
Ladd, W.