FINE GOLD LACQUERED 8″ INCH EVEREST THEODOLITE SIGNED: TROUGHTON & SIMMS AND BARROW. LONDON.

FINE GOLD LACQUERED 8″ INCH EVEREST THEODOLITE SIGNED: TROUGHTON & SIMMS AND BARROW. LONDON.

£5,000 GBP

IMPORTANT EVEREST THEODOLITE OF LARGE PROPORTIONS WITH 8" SILVER HORIZONTAL CIRCLE WITH FOUR SILVER VERNIERS A, B, C & D THE 360 DEGREE SCALE IS DIVIDED IN 10 MINUTE DIVISIONS, VERNIERS READING TO 10 SECONDS OF ARC. THE REVERSIBLE TELESCOPE IS 18.1/2" INCHES LONG. MAIN BRASS BARREL IS 2" INCHES DIA. O.G. HAS 2" GLASS SHOWING. ORIGINAL GOLD LACQUER & PINE BOXES ( ONE BOX BOTTOM REPLACED ). THERE ARE TWIN READERS ON THE HORIZONTAL CIRCLE AND THE TWIN VERTICAL ARCS HAVE A DETACHABLE PAIR OF READERS THE ARCS HAVE SILVER SCALES OF 20-0-30 DEGREES DIVIDED IN 10 MINUTE DIVISIONS ALSO READING TO 10 SECONDS OF ARC. GOOD IMAGE, INVERTED, SPIDERS WEB INTACT.

Circa

1830

Country of manufacture

UK and Ireland

Category: Surveying Instruments & Mining

Description

HENRY BARROW OF LONDON: WORKED FOR DOLLOND & TROUGHTON AND WAS A COMPETENT INSTRUMENT MAKER, HE WAS INVOLVED WITH SIR GEORGE EVEREST IN THE GREAT SURVEY OF INDIA. EVEREST REQUESTED A INSTRUMENT  MAKER SHOULD BE IN INDIA FOR RUNNING REPAIRS & MAINTENANCE. HENRY BARROWS WAS APPOINTED TO THE JOB IN INDIA. EVEREST PRAISED BARROWS WORKMANSHIP SAYING: I MUST DO THAT ARTIST ( BARROW ) THE JUSTICE TO SAY THAT FOR EXCELLENCE OF WORKMANSHIP, ACCURACY OF DIVISION, STEADINESS, REGULARITY & GLIBNESS OF MOTION, GENERAL NEATNESS, ELEGANCE & NICE FITTING OF ALL ITS PARTS, NOT ONLY WERE MY EXPECTATIONS EXCEEDED BUT I REALLY THINK IT IS AS A WHOLE AS UNRIVALLED IN THE WORLD AS IT IS UNIQUE. I DO BELIEVE THIS INSTRUMENT WAS A COMMISSION IT HAS ALL THE RIGHT NAMES ON IT: TROUGHTON & SIMMS & BARROW.. WETHER IT WAS USED OR EVER WENT TO INDIA ON THE GREAD TRIGONOMETRICAL SURVEY OF INDIA I CAN’T SAY. IN 1825 EVEREST RETURNED TO ENGLAND FOR A PERIOD, RETURNING TO INDIA IN 1830 & SPENT CONSIDERABLE TIME IN THE WORKSHOPS OF TROUGHTON & SIMMS.

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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. Over the years I have acquired many rare and wonderful items for the trade and collectors alike. I hope this continues. Mike Read. Email: [email protected]

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