Primary metal speculum mirror with central hole
- Made:
- 1840-1850 in Patricroft
- maker:
- James Hall Nasmyth
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Science Museum Group
© The Board of Trustees of the Science Museum
Primary metal speculum mirror with central hole, 8 5/8-inch diameter, for reflecting telescope (see note).
Details
- Category:
- Astronomy
- Object Number:
- 1897-14/4
- Materials:
- speculum metal
- Measurements:
-
overall: 20 x 220 mm
- credit:
- Lieutenant General A de Gorloff
