MINING THEODOLITE & SIMPLE MINERS DIAL, FINE EXAMPLE OF A LONDON MADE CORNISH TYPE LEAN DIAL BY JOHN DENNETT POTTER. LONDON.

MINING THEODOLITE & SIMPLE MINERS DIAL, FINE EXAMPLE OF A LONDON MADE CORNISH TYPE LEAN DIAL BY JOHN DENNETT POTTER. LONDON.

£1450 GBP

GOOD LEAN DIAL SIGNED: POTTER. POULTRY, LONDON. WITH UNUSUAL EARLY FEATURE OF HAVING THE COMPASS LID CALIBRATED WITH THE DIFF OF HYPO & BASE SCALES WITH ORIGINAL PLUMB BOB. THE 5.1/2" INCH Dia. SILVERED COMPASS WITH 360 DEGREE OUTER CIRCLE WITH VERNIER READING TO 3 MINUTES OF ARC, INNER CIRCLE IN 90 DEGREE QUADRANTS, EAST & WEST TRANSPOSED, EXTERNAL SPIRIT LEVELS. THE INVERTED RACKED VERTICAL 180 DEGREE HALF CIRCLE IN TWO 90 DEGREE QUADRANTS WITH VERNIER, REVERSE WITH DIFF OF HYPO & BASE SCALES, INTERCHANGABLE FOLDING SIGHTS

Circa

1850

Country of manufacture

UK and Ireland

Description

THE DIAL COMES WITH ORIGINAL MAHOGANY BOX & TWO LEVEL TRIPOD WITH FOUR SCREW MOUNT. BOX 10.3/8″ x 10.1/8″ x 4″ INCHES. TELESCOPE CLOSED 9″ INCHES, GOOD INVERTED IMAGE WITH CROSS HAIRS. SHIPPING BY UPS, FEDEX Etc. FULLY TRACKED.     Contact Email”  PLEASE NOTE CHANGE OF EMAIL:michaelread060@gmail

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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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