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A RARE RAND-PATENT NAVAL AND MILITARY GUNNERY ORDNANCE TELESCOPE BY WILLIAM WATKINS, LONDON, CIRCA
A RARE RAND-PATENT NAVAL AND MILITARY GUNNERY ORDNANCE TELESCOPE BY WILLIAM WATKINS, LONDON, CIRCA 1799, the 35in. telescope comprising a tapering...
A LARGE MID 18TH-CENTURY 1½IN. SINGLE-DRAW NAVAL TELESCOPE, unsigned, with tapering mahogany decagonal tube, main lens assembly with dust slide, i...
A FINE EARLY 19TH-CENTURY BALEEN, SHAGREEN AND LIGNUM VITÆ COMPASS & TELESCOPE SYSTEM STICK BY
A FINE EARLY 19TH-CENTURY BALEEN, SHAGREEN AND LIGNUM VITÆ COMPASS & TELESCOPE SYSTEM STICK BY WILLSON, LONDON, comprising 1in. single-draw shagre...
A PAIR OF PRESENTATION TELESCOPE BINOCULARS BY BROWN, GLASGOW, black-painted tubes with leather
A PAIR OF PRESENTATION TELESCOPE BINOCULARS BY BROWN, GLASGOW, black-painted tubes with leather grips, ivory focus width adjustment wheels, inscri...
A RARE 23½IN. RADIUS EBONY AND BOXWOOD FIDUCIAL OCTANT BY EDWARD NAIRNE, LONDON, CIRCA 1760, with
A RARE 23½IN. RADIUS EBONY AND BOXWOOD FIDUCIAL OCTANT BY EDWARD NAIRNE, LONDON, CIRCA 1760, with typical ‘T’-frame, the boxwood arc divided to 90...
AN 18TH-CENTURY 14½IN. RADIUS VERNIER OCTANT, unsigned, with ebony ‘T’-frame, inset ivory scale
AN 18TH-CENTURY 14½IN. RADIUS VERNIER OCTANT, unsigned, with ebony ‘T’-frame, inset ivory scale divided -1°-0°-98°, Vernier with right-aligned ‘0’...
A 14½IN. RADIUS MAHOGANY VERNIER OCTANT BY JOHN HARDY RATCLIFF, LONDON, 1777, with inset ivory scale
A 14½IN. RADIUS MAHOGANY VERNIER OCTANT BY JOHN HARDY RATCLIFF, LONDON, 1777, with inset ivory scale divided -5°-0°-95°, Vernier scale with centra...
A RARE 5IN. RADIUS MINIATURE BRASS VERNIER SEXTANT BY JESSE RAMSDEN, LONDON, NO. 746, CIRCA 1783-
A RARE 5IN. RADIUS MINIATURE BRASS VERNIER SEXTANT BY JESSE RAMSDEN, LONDON, NO. 746, CIRCA 1783-4, with polished-brass one-piece frame, signed on...
A 10IN. RADIUS LACQUERED-BRASS VERNIER SEXTANT BY JESSE RAMSDEN, LONDON, NO. 1093 CIRCA 1791, signed
A 10IN. RADIUS LACQUERED-BRASS VERNIER SEXTANT BY JESSE RAMSDEN, LONDON, NO. 1093 CIRCA 1791, signed on the arc Ramsden London and numbered behind...
A FINE 12½IN. RADIUS FLAT-FRAME VERNIER SEXTANT BY JESSE RAMSDEN, LONDON, CIRCA 1790, apparently
A FINE 12½IN. RADIUS FLAT-FRAME VERNIER SEXTANT BY JESSE RAMSDEN, LONDON, CIRCA 1790, apparently unnumbered, with lacquered-brass ‘T’-frame, signe...
A FINE 7IN. RADIUS BRIDGE-FRAMED VERNIER SEXTANT BY JESSE RAMSDEN, LONDON, NO. 1226, CIRCA 1794,
A FINE 7IN. RADIUS BRIDGE-FRAMED VERNIER SEXTANT BY JESSE RAMSDEN, LONDON, NO. 1226, CIRCA 1794, with lacquered-brass frame signed at the apex Ram...
A FINE EARLY 19TH-CENTURY LACQUERED-BRASS 7½IN. RADIUS BRIDGE-FRAMED VERNIER SEXTANT BY BERGE,
A FINE EARLY 19TH-CENTURY LACQUERED-BRASS 7½IN. RADIUS BRIDGE-FRAMED VERNIER SEXTANT BY BERGE, LATE RAMSDEN, with lattice frame signed on the arc ...
AN EARLY 19TH-CENTURY 8IN. RADIUS DOUBLE-FRAMED VERNIER SEXTANT WITH PLATINUM SCALE BY TROUGHTON,
AN EARLY 19TH-CENTURY 8IN. RADIUS DOUBLE-FRAMED VERNIER SEXTANT WITH PLATINUM SCALE BY TROUGHTON, LONDON, with polished-brass straight bar frame, ...
A GOOD MID19TH-CENTURY DOUBLE-FRAMED 6½IN. RADIUS VERNIER SEXTANT BY J.B. DANCER, MANCHESTER, the
A GOOD MID19TH-CENTURY DOUBLE-FRAMED 6½IN. RADIUS VERNIER SEXTANT BY J.B. DANCER, MANCHESTER, the polished-brass ‘T’-frame signed on the arc as pe...
A 19TH-CENTURY SURVEYING COMPASS BY CARY, LONDON, the 2½in. silvered dial signed as per title,
A 19TH-CENTURY SURVEYING COMPASS BY CARY, LONDON, the 2½in. silvered dial signed as per title, raised outer ring, glazed within brass drum case on...
A PLANE TABLE COMPASS BY PIERRE GOURDIN, PARIS, CIRCA 1780, with 4in. printed dial signed by the ‘
A PLANE TABLE COMPASS BY PIERRE GOURDIN, PARIS, CIRCA 1780, with 4in. printed dial signed by the ‘south’ point Gourdin AParis, half-blued-steel po...
A CURRENT FLOW METER BY T. COOKE & SONS LTD, constructed in brass and signed on the propeller
A CURRENT FLOW METER BY T. COOKE & SONS LTD, constructed in brass and signed on the propeller guard as per title, the recording disc calibrated fo...
AN 18th-CENTURY BOXWOOD ALCOHOL PROOF SLIDE RULE BY T. GILL, LONDON, calibrated over both sides,
AN 18th-CENTURY BOXWOOD ALCOHOL PROOF SLIDE RULE BY T. GILL, LONDON, calibrated over both sides, signed and stamped T. Gill / PROOF -- 8¾in. (22cm...
A 20TH-CENTURY MARINE BULKHEAD INCLINOMETER BY H. HUGHES & SON LTD, LONDON, with 3¾in. diameter
A 20TH-CENTURY MARINE BULKHEAD INCLINOMETER BY H. HUGHES & SON LTD, LONDON, with 3¾in. diameter silvered dial signed and inscribed as per title, s...
A GOOD 19TH-CENTURY 7IN. RADIUS VERNIER SEXTANT BY CARY, LONDON, the lacquered-brass ‘T’-frame
A GOOD 19TH-CENTURY 7IN. RADIUS VERNIER SEXTANT BY CARY, LONDON, the lacquered-brass ‘T’-frame with polished-brass arc signed as per title and num...
AN ATTRACTIVE MID 19TH-CENTURY 6IN. RADIUS VERNIER SEXTANT BY SPENCER BROWNING & CO., PORTSMOUTH,
AN ATTRACTIVE MID 19TH-CENTURY 6IN. RADIUS VERNIER SEXTANT BY SPENCER BROWNING & CO., PORTSMOUTH, with oxidised-brass curved bar frame with polish...
A 19TH-CENTURY 9½IN. RADIUS VERNIER OCTANT, unsigned, the ebony ‘T’-frame with ivory scale divided
A 19TH-CENTURY 9½IN. RADIUS VERNIER OCTANT, unsigned, the ebony ‘T’-frame with ivory scale divided to 100º, owner’s inscription on the cross bar f...
A FINE EARLY 19TH-CENTURY ASTRONOMICAL REFLECTING TELESCOPE BY DOLLOND, LONDON, the 5 x 35in. main
A FINE EARLY 19TH-CENTURY ASTRONOMICAL REFLECTING TELESCOPE BY DOLLOND, LONDON, the 5 x 35in. main tube signed on the back plate as per title, obj...
A 20TH-CENTURY 3IN. TWO-DRAW ASTRONOMICAL REFRACTING TELESCOPE BY BROADHURST CLARKSON & CO., LONDON,
A 20TH-CENTURY 3IN. TWO-DRAW ASTRONOMICAL REFRACTING TELESCOPE BY BROADHURST CLARKSON & CO., LONDON, with 35in. crackle-finished tube, signed on t...
AN EARLY 19TH-CENTURY 1¼IN. THREE-DRAW TELESCOPE SIGNED RAMSDEN, LONDON, with nickel-plated tubes
AN EARLY 19TH-CENTURY 1¼IN. THREE-DRAW TELESCOPE SIGNED RAMSDEN, LONDON, with nickel-plated tubes signed as per title, wooden main tube, contained...
A 1IN. SINGLE DRAW ACHROMATIC MARINE TELESCOPE BY PETER DOLLOND, LONDON, CIRCA 1765, the slightly-
A 1IN. SINGLE DRAW ACHROMATIC MARINE TELESCOPE BY PETER DOLLOND, LONDON, CIRCA 1765, the slightly-tapered mahogany tube with single draw signed by...
A 1½IN. SINGLE-DRAW MAHOGANY AND BRASS MARINE TELESCOPE BY DOLLOND LONDON, lens cap with dust slide,
A 1½IN. SINGLE-DRAW MAHOGANY AND BRASS MARINE TELESCOPE BY DOLLOND LONDON, lens cap with dust slide, shade slide, signed and inscribed by the tape...
AN EARLY 19TH-CENTURY 1IN. THREE-DRAW MAHOGANY AND BRASS POCKET TELESCOPE BY DOLLOND, LONDON, with
AN EARLY 19TH-CENTURY 1IN. THREE-DRAW MAHOGANY AND BRASS POCKET TELESCOPE BY DOLLOND, LONDON, with objective cap signed by eye-piece with dust sli...
A RARE LATE 17TH/EARLY 18TH-CENTURY ITALIAN CARD, LEATHER AND IVORY 1IN. THREE-DRAW TELESCOPE,
A RARE LATE 17TH/EARLY 18TH-CENTURY ITALIAN CARD, LEATHER AND IVORY 1IN. THREE-DRAW TELESCOPE, unsigned, each draw with impressed focus ring and i...
A FINE ‘JONES MOST-IMPROVED’-TYPE COMPOUND MICROSCOPE COMPENDIUM BY DOLLOND, LONDON, CIRCA 1800,
A FINE ‘JONES MOST-IMPROVED’-TYPE COMPOUND MICROSCOPE COMPENDIUM BY DOLLOND, LONDON, CIRCA 1800, signed on the foot as per title, the square-secti...
A FINE FLAT-BACKED BOW-FRONT DOMESTIC BAROMETER BY WATKINS & HILL, LONDON, CIRCA 1840, signed on the
A FINE FLAT-BACKED BOW-FRONT DOMESTIC BAROMETER BY WATKINS & HILL, LONDON, CIRCA 1840, signed on the silvered scale Watkins & Hill, 5 Charing Cros...
A MID 20TH-CENTURY MINIATURE BAROGRAPH BY W. KOCH, ZURICH, with four-atmosphere pressure drum and
A MID 20TH-CENTURY MINIATURE BAROGRAPH BY W. KOCH, ZURICH, with four-atmosphere pressure drum and stainless steel recording drum with clockwork mo...
AN ATTRACTIVE LATE 19TH-CENTURY GILT-BRASS MINIATURE BAROGRAPH BY RICHARD FRERES, PARIS, with five-
AN ATTRACTIVE LATE 19TH-CENTURY GILT-BRASS MINIATURE BAROGRAPH BY RICHARD FRERES, PARIS, with five-atmosphere pressure drum and clockwork recordin...
AN EARLY 19TH-CENTURY POCKET DRAWING SET ETUI, unsigned, with typical brass instruments comprising
AN EARLY 19TH-CENTURY POCKET DRAWING SET ETUI, unsigned, with typical brass instruments comprising compass, pen, pencil, dividers etc. (lacking sq...
A 19TH-CENTURY ‘DUMPY’ LEVEL BY A. ABRAHAM, LIVERPOOL, constructed in oxidised brass, signed on
A 19TH-CENTURY ‘DUMPY’ LEVEL BY A. ABRAHAM, LIVERPOOL, constructed in oxidised brass, signed on the main tube as per title and contained in fitted...
AN IVORY NUREMBURG STRING-GNOMON COMPASS SUNDIAL, CIRCA 1730, face 1a with depiction of a hound
AN IVORY NUREMBURG STRING-GNOMON COMPASS SUNDIAL, CIRCA 1730, face 1a with depiction of a hound wearing a collar; 2b with later scratched doodles ...
TWO CHRONOMETER GUARD BOXES, (lacking maker’s marks, old wear and missing parts) -- 8½ x 9in. (21.
TWO CHRONOMETER GUARD BOXES, (lacking maker’s marks, old wear and missing parts) -- 8½ x 9in. (21.5 x 23cm.), (2) ...[more]
A LATE GEORGIAN 2-DAY MARINE CHRONOMETER BY JOHN HERON, GREENOCK, NO. 197, the 3in. silvered dial
A LATE GEORGIAN 2-DAY MARINE CHRONOMETER BY JOHN HERON, GREENOCK, NO. 197, the 3in. silvered dial signed and numbered Heron Greenock 197, Earnshaw...
AN EARLY 19TH-CENTURY 2-DAY MARINE CHRONOMETER BY BARRAUD, LONDON, NO. 2/877, the 3½in. silvered
AN EARLY 19TH-CENTURY 2-DAY MARINE CHRONOMETER BY BARRAUD, LONDON, NO. 2/877, the 3½in. silvered dial signed and inscribed Barraud, Cornhill, Lond...
A TWO-DAY MARINE CHRONOMETER BY KULLBERG, LONDON, NO. 7905, CIRCA 1911, the 4in. silvered dial
A TWO-DAY MARINE CHRONOMETER BY KULLBERG, LONDON, NO. 7905, CIRCA 1911, the 4in. silvered dial signed and inscribed VICTOR KULLBERG MAKER TO THE A...
A MID 20TH-CENTURY GERMAN TWO-DAY MARINE CHRONOMETER BY GLASHÜTTER, NO. 9241, the 4in. silvered dial
A MID 20TH-CENTURY GERMAN TWO-DAY MARINE CHRONOMETER BY GLASHÜTTER, NO. 9241, the 4in. silvered dial signed and numbered Glashütte 9241, subsidiar...
A 2-DAY MARINE CHRONOMETER BY WEMPE CHRONOMETERWERKE, HAMBURG, NO. 3547, CIRCA 1943, the 4in.
A 2-DAY MARINE CHRONOMETER BY WEMPE CHRONOMETERWERKE, HAMBURG, NO. 3547, CIRCA 1943, the 4in. white Bakelite dial with Arabic numerals, signed and...