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Sextant - click to enlarge

Sextant - click to enlarge

Sextant - click to enlarge

Click image to enlarge.

Sextant

Catalogue number:
1980.0075.02

Dimensions:
radius 7.5 inches

Discussion:
This sextant belonged to Oberlin College, and may date from the time of the founding of that school in 1833. The frame is brass. The silvered scale is graduated every 15 minutes from -5o to +160o and read by vernier with tangent screw and swinging magnifier to single minutes of arc. One trade card in the box is that of Thomas Hemsley (either father or son) who were in business in London throughout the first half of the 19th century, offering a wide variety of instruments and other items for navigational use.

Ref: Gloria Clifton, Directory of British Scientific Instrument Makers 1550-1851 (London, 1995), p. 132.

Further Information:

Sextant

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