Standard Reference mark
- Made:
- 1920
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LicenseThis image is released under a CC BY-NC-SA 4.0 Licence
Buy this image as a print
BuyLicense this image for commercial use at Science and Society Picture Library
LicenseStandard Reference mark, brass
Science Museum Group
© The Board of Trustees of the Science Museum
Standard Reference mark, brass
Science Museum Group
© The Board of Trustees of the Science Museum
Standard Reference mark, brass, United States Coast and Geodetic Survey, c. 1920
Details
- Category:
- Surveying
- Object Number:
- 1920-77
- Materials:
- brass
- type:
- reference mark
- credit:
- U.S. Coast and Geodetic Survey
