Hadley Octant with case

Date1797

Mediumebony, wood, brass, glass

Dimensions13 3/4 in. (34.9 cm)

Donor credit lineKendall Whaling Museum Collection Transfer

Object number2001.100.3005

Institutional Credit LineCourtesy of the New Bedford Whaling Museum

DescriptionA quadrant with an ebony wood frame and limb, brass sight vanes, horizon glasses, index, index glass and three screens with green, red, and orange glass. Double reflecting, divided -2 degree to 99 degree by 1 degree by 20 minutes, with plate, missing pencil. Three filters for either the index mirror or the horizon sight. Peep sight with two sight holes with a back sight. Ebony frame with flat brass index arm. Quadrant case has label of Richard Patten, Mathematical Instrument Maker, 18 Water St., New York for 2001.100.3005. Case of wood (not original to this particular sextant) painted black with "J H" inside a circle and in gold colored paint, inside painted red.ProvenanceHadley Quadrant; Navigating instrument made by Owen Owens. The quadrant was originally owned by American sea captain Thomas Howland, who acquired a box for it from the great nautical instrument maker Richard Patten of New York City. The name plate and scale are made of sea elephant ivory. A sextant by Owen Owens of Liverpool in the Peabody Essex Museum is also dated 1797.

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