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LicenseOpen cross-staff head with four fixed alidade sights
Science Museum Group
© The Board of Trustees of the Science Museum
Open cross-staff head with four fixed alidade sights, by Dollond family, London, England, 1795-1805
Details
- Category:
- Surveying
- Object Number:
- 1921-81
- Materials:
- cat gut and brass (copper, zinc alloy)
- Measurements:
-
overall: 142 mm x 162 mm x 153 mm, .695kg
- type:
- cross-head
- credit:
- J.C. Stevens (Auction Sales)
