- This octant has an ebony frame and reinforced brass index arm. The ivory scale is graduated every 20 minutes from -2° to +104° and read by vernier (without tangent screw) to single minutes of arc. A note written by Capt. H. Flynn of Lowell, Ma. in 1891 traces the history of this octant back to 1772. Stylistic concerns, however, suggest that the instrument was made in the early 19th century.
- Currently not on view
- Object Name
- radius: 9 3/4 in; 24.765 cm
- overall: 12 in x 9 3/4 in x 3 in; 30.48 cm x 24.765 cm x 7.62 cm
- overall in case: 3 3/4 in x 11 1/2 in x 13 in; 9.525 cm x 29.21 cm x 33.02 cm
- ID Number
- catalog number
- accession number
- Credit Line
- College of the Holy Cross
- Data Source
- National Museum of American History
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