Vertical Circle
Object Details
- Gambey, Henri Prudence
- Description
- This is one of several Gambey instruments that the U. S. Coast Survey acquired in the mid-1840s. It is heavy, stable, and precise. The circle itself is silvered, finely graduated (probably to 5 minutes), and read by opposite verniers and magnifiers. The signature reads "Gambey a Paris." The "U S C & G S NO 21" inscription must have been added after 1878, when the Coast Survey became the Coast and Geodetic Survey.
- Location
- Currently not on view
- 1840s
- ID Number
- PH.314631
- accession number
- 208213
- catalog number
- 314631
- Object Name
- vertical circle
- Measurements
- telescope aperture: 1 1/4 in; 3.175 cm
- telescope: 12 in; 30.48 cm
- vertical circle: 6 in; 15.24 cm
- overall: 15 1/4 in x 10 15/16 in x 12 1/4 in; 38.735 cm x 27.78125 cm x 31.115 cm
- place made
- France: Île-de-France, Paris
- See more items in
- Medicine and Science: Physical Sciences
- Surveying and Geodesy
- Measuring & Mapping
- National Museum of American History
- Record ID
- nmah_998405
- Metadata Usage (text)
- CC0
- GUID (Link to Original Record)
- https://n2t.net/ark:/65665/ng49ca746a8-7bc8-704b-e053-15f76fa0b4fa
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