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Lot 54

A Colby's Patent Horizon Instrument,
English, circa 1875,

25 February 2004, 14:00 GMT
London, Knightsbridge

Sold for £681.50 inc. premium

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A Colby's Patent Horizon Instrument, English, circa 1875,

signed Colby's Horizon Inst. Patd. Fed 22 1870, the hand-held instrument with eyepiece and cross-hairs sighting, two coloured filters, weighted sector moving over 180 degree arc, 9in. (23 cm.) long

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