MID 18TH CENTURY ENGLISH SIMPLE THEODOLITE/CIRCUMFERENTOR

MID 18TH CENTURY ENGLISH SIMPLE THEODOLITE/CIRCUMFERENTOR

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VERY GOOD EARLY CIRCUMFERENTOR UNSIGNED, PROBABLY BY THOMAS WRIGHT, HEATH & WING OR BENJAMIN COLE.THE CIRCLE IS 11" INCHES DIAMETER DIVIDED IN SINGLE DEGREES, VERNIER READS TO 5 MINUTES OF ARC. THE COMPASS BOX IS 5" INCHES DIAMETER, THE SILVERED COMPASS WITH INNER CIRCLE OF FOUR 90 DEGREE QUADRANTS IN 10 DEGREE DIVISIONS,THE OUTER CIRCLE 360 DEGREES DIVIDED IN SINGLE DEGREES, GOOD BLUED NEEDLE, ORIGINAL DOVETAILED SIGHTS, ORIGINAL BREAKLEG TRIPOD & OAK BOX. 11.3/4" SQUARE x 3.1/4" DEEP.

Circa

1760

Country of manufacture

UK and Ireland

Category: Surveying Instruments & Mining

Description

SHIPPING BY UPS, FEDEX, ETC.,    Contact Email :  michaelread060@gmail.com

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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: michaelread060@gmail.com

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