Speculum Mirror, 1861
- Made:
- 1861 in Patricroft
- maker:
- James Hall Nasmyth
Flat metal speculum mirror, one of three, of 4 1/2-inch diameter for reflecting telescope, 1861. May have been part of James Nasmyth's reflecting telescope.
Details
- Category:
- Astronomy
- Object Number:
- 1897-14/3
- Materials:
- speculum (bronze alloy with arsenic)
- Measurements:
-
overall: 23 mm x x , 114 mm, 2.04kg
- type:
- components, flat mirrors, metal mirrors and astronomical instruments
- credit:
- Lieutenant General A de Gorloff