Pitch polisher
- maker:
- William Herschel
Pitch polisher used by William Herschel to polish his metal speculum mirrors used in his telescopes.
Details
- Category:
- Astronomy
- Object Number:
- 1876-1020 Pt2
- Materials:
- brass (copper, zinc alloy) and tin (metal)
- Measurements:
-
overall (estimate): 50 x 140 mm
- type:
- components and tools (mirror polishing )
- credit:
- Mr John Herschel-Shorland
