Hagger Backstaff

Description
The frame of this instrument is rosewood, while the arcs, brace, and vanes are boxwood. The frame is inscribed "Wm. G. Hagger Newpt R. Island For M–" and "364." The "364" inscribed on the back of the larger arc is probably a serial number, indicating that this instrument dates from around 1773.
William Guyse Hagger (1748-1832) was an instrument maker in Newport, Rhode Island, until the Revolution, when British troops occupied that city.
Ref: Deborah J. Warner, "Davis Quadrants in America,"Rittenhouse 3 (1988): 23-40, on 32-33.
Location
Currently not on view
date made
ca 1773
maker
Hagger, William G.
place made
United States: Rhode Island, Rhode Island, Newport
Measurements
overall: 17.5 cm x 68 cm x 39 cm; 6 7/8 in x 26 25/32 in x 15 11/32 in
ID Number
PH*319029
catalog number
319029
accession number
236168
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Data Source
National Museum of American History, Kenneth E. Behring Center

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