FINE HYDROGRAPHIC VERNIER SEXTANT

FINE HYDROGRAPHIC VERNIER SEXTANT

£875 GBP

SEXTANT IN MINT CONDITION BY J H STEWARD. LONDON

Circa

1890

Country of manufacture

UK and Ireland

Categories: Navigational instruments, Surveying Instruments & Mining

Description

RARE & INTERESTING SEXTANT SIGNED: J H STEWARD 406 STRAND LONDON No 310. IN IT’S ORIGINAL MAHOGANY DOVETAILED BOX ( 10″ x 9.1/2″ x 5″ ) COMPRISING OF LONG INVERTING TELESCOPE WITH TWO EYEPIECES, ERECTING TELESCOPE, SIGHTING TUBE, TWO COLOURED FILTER CAPS, SCREWDRIVER & ADJUSTING PIN. EXAMINATION CERTIFICATE DATED 1891. THE SILVER SCALE -5 DEGREES TO 160 DEGREES IS DIVIDED IN 10 MINUTE DIVISIONS, VERNIER READING TO 10″ SECONDS OF ARC. THIS UNUSUAL SEXTANT WITH TWO HANDLES WAS ALMOST CERTAINLY FAVOURED FOR TAKING HORIZONTAL ANGLES USED IN HYDROGRAPHIC COASTAL SURVEY WORK & CHART CARTOGRAPHY.  Contact Email:  m.jread@btinternet.com

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Dealer information

GB MikeRead

Mike Read Antique Sciences

Based in Lelant, near St Ives, Cornwall, I have been trading since 1979, buying and selling scientific instruments and nautical antiques. I have exhibited at the London Scientific Fair for 20 years. Over the years I have acquired many rare and wonderful items for the trade and collectors alike. I hope this continues. Mike Read. Email: m.jread@btinternet.com.

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