UK and Ireland Archives - Page 77 of 93

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Paperback consisting of 66 pages Read More...

DEEP-CELL ANATOMICAL INJECTION BY THE MASTER

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DEEP-CELL ANATOMICAL INJECTION BY THE MASTER, English, mid-19th century, hand-signed in diamond writing “Hett” and with the specimen identification “Choroid Coat of the Eye of the Ox.” Mounted on the standard 1″ x 3″ glass microscope slide is Hett’s distinctive square black cell with deep central circular glazed cavity containing the red injected tissue, fluid, and his mandatory air bubble. Condition is very fine. Alexander Hett specialized in preparing deep-cell fluid mounts, of a quality “unsurpassed by any other fluid-mounted Read More...

15 Oct

IMPORTANT DESIGN IN A LARGE ACHROMATIC TELESCOPE

By TESSERACT

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IMPORTANT DESIGN IN A LARGE ACHROMATIC TELESCOPE, English, c. 1770, signed on the objective cell “Pyefinch, London, No. 194.” The telescope has a tapered mahogany barrel with substantial brass fittings, constructed in four screw-together sections and one brass drawtube. Overall length varies from 6’3″ to 7’4″ (1.90 – 2.24 m). The slightly grey-green objective is 2″ in diameter, with two elements in notched mounts to assure they are kept in the optimum rotary alignment. The elements have adjustable separation; Read More...

12 Oct

THE ULTIMATE IN DECORATION ON ALUMINUM — ENGLISH BINOCULARS FOR THE CHINESE MARKET

By TESSERACT

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THE ULTIMATE IN DECORATION ON ALUMINUM — ENGLISH BINOCULARS FOR THE CHINESE MARKET, c. 1870, signed “Callaghan, 23A New Bond St., corner of Conduit St., London; Made for Lapraik, Hongkong.” Measuring 4″ (10 cm) long (closed), the binoculars extend to 5-1/2″ by geared center focus and sliding sunshades. Every square millimeter seems covered with abundant floral and geometric decoration. Condition is very fine and functional, giving excellent images. The maker was the optician William Callaghan (probably the elder, his son Read More...

12 Oct

THE MESSUM NAUTICAL PROTRACTOR

By TESSERACT

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THE MESSUM NAUTICAL PROTRACTOR, English, c.1910, signed “Cary, London, Regd. No. 475601.” Made of thermoplastic or heavy celluloid, 7″ overall, the protractor is engraved on both sides with numerous scales in black and red. Included are a “Masthead Angle Table” and a “Tide Scale For 6 Hr. Tide.” The inventor was apparently Cmdr. Stuart V.S.C. Messum, author of Hydrographic Surveying in 1910. Messum does discuss various scales and designs of protractors, as well as the practicality of surveying by Read More...

11 Oct

SIGHTING QUADRANT FOR DISTANCE RANGING OF TALL SHIPS, ETC.

By TESSERACT

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SIGHTING QUADRANT, English, c. early 19th century. This all-brass instrument stands 6-1/4″ (16 cm) tall, with cross-hair equipped sighting tube moving in altitude over the 0(1)90 degree quadrant, and swinging freely in azimuth on the short pillar mount. Sighting horizontally the scale reads 0°; vertically, 90°. Thus we have a straightforward astronomical quadrant measuring angular altitudes of celestial bodies as well as topographic features, buildings, etc. But a small scale, with index pointer, on the reverse tells a further Read More...

07 Oct

John J. Griffin & Sons 1873 Scientific Demonstration Apparatus Catalog

By M and R Gordon

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While printed copies of digitized scans of this catalog are available, the original is a very scarce item. Neither Abe nor AddALL shows a copy. This 186 page catalog is in very good condition, noting wear to the top and bottom of spine. 18.5 x 13.5 cm. Read More...

06 Oct

Set of Governmental Standard Link Floor Plaques by De Grave & Co 1914

By Jason Clarke Antiques

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For sale, a very rare set of imperial measurement plaques depicting 0 to 100 links by De Grave & Co Limited 1914. Solid brass plaques such as these were originally produced in 1876 by The Board of Trade under Sir George Airy to provide public access to British imperial standards and are reputed to have been a means to protecting the standards after the originals were destroyed in the Palace of Westminster in the 1830’s. On that basis, The Board Read More...

06 Oct

JENKIN’S “PATENT MAGNETIC COMPASS BEARING PROTRACTOR AND COMPASS COURSE FINDER

By TESSERACT

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JENKIN’S “PATENT MAGNETIC COMPASS BEARING PROTRACTOR AND COMPASS COURSE FINDER,” English, late 19th century, unsigned. Made of plated brass with an 11-1/2″ (29 cm) long clampable brass index arm, this multipurpose navigational charting instrument has a divided square and calibrated clampable circle with compass headings and degree scale. We have seen an original instructional sheet and testimonials, indicating that the principal advantage of this instrument to the navigator is the ability to apply the compass error (variation and deviation Read More...

03 Oct

FOR LOCATING AND MAINTAINING SHIP POSITION, c. 1865

By TESSERACT

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THE HAY / STEBBING DIRECT SIGHTING STATION POINTER OUTFIT, English, c.1865, signed “Invented by Com’r. Hay R.N. & J.R. Stebbing F.R.A.S. Southampton, No. 514″ and with an 1862 registration mark. This multipurpose instrument is constructed of brass and boxwood, 12-1/2″ (32 cm) overall. An adjustable sight vane is mounted above three pointer arms, on a semicircular protractor and 12” rule. Accessories include a centerpoint / plumb support interchangeable with the sight vane, a hold-down screw, and a curious brass Read More...

30 Sep

MARINER’S PLAIN QUADRANT

By TESSERACT

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THE PLAIN QUADRANT, English, mid-18th century, made of finely-grained boxwood in the form of a quarter circle, 6″ (15 cm) in radius and 9/32″ (7mm) thick. The borders are ruled, and the arc is divided every degree from 0 to 90, with calibrations every 10° and intermediate 5° positions marked with triple-dot patterns. The quarter circle’s center is pierced with a hole for supporting a string and plumb bob (not present). Condition is very fine throughout. Sometimes referred to Read More...

27 Sep

ELEGANT, FOOT-LONG PARALLEL RULE

By TESSERACT

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LARGE ELEGANT PARALLEL RULE, English, c. 1800, hand-engraved on the reverse “J. Watkins, Charing Crofs, London.” This all brass rule is 12″ (30 cm) wide, constructed with a massive scissor hinge elegantly shaped and pierced, designed with opposing slots which provide an offsetting parallel motion as the rule is opened. There are two small knobs for grasping, and both outer edges are beveled for precision in course marking and chart reading. Condition is good noting some stains and darkening, Read More...