UK and Ireland Archives - Page 8 of 102

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A Paget Angle Sextant, by H. Hughes & Son, London in mahogany case. The threaded wooden handle and sextant are held in a fitted mahogany wood box that is approximately 15 x18 cm. The paget angle sextant, originally designed in 1892, is a very simple sextant meant for land survey use. It has two mirrors and a dial. The pointer on the dial is connected through a set of gears to the index mirror. By moving the pointer, the angle is Read More...

09 Jul

18TH CENTURY NON-ACHROMATIC TELESCOPE SIGNED J. DOLLOND & SON LONDON

By Eppursimuove

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Very rare early decagonal telescope. The erector tube consists of 5 sectors with 5 lenses. Extremely rare signature “J. Dollond & Son”. Telescope is dated around 1755, very early, when John Dollond was still in life. He patented the achromatic objective lens in 1758. When it is open it gives a good image. 51cm closed 77cm open For further informations and photos don’t hesitate to send me an email. Read More...

09 Jul

Triple Dividers, Gilt Metal Pocket Telescope/monocular/spyglass, Unsigned Calculigraphe type Circular Slide Rule

By Fletcher

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Large pair of Triple Dividers,nickel, seven inches long=£240 Gilt metal folding telescope/spyglass/monocular,adjustable focus, condition good=£250 Larger than normal, circular slide rule/calculator, Calculigraphe type, one sided, three inches diameter=£200 Read More...

07 Jul

Rare Pair of Victorian “PERFECTION” Reading Shades

By M and R Gordon

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Rare Pair of Victorian “PERFECTION” Reading Shades. Length of box: 5″ or 13cm. Shades appear to be celluloid. The label on the side of the box is that of the retailer. Read More...

07 Jul

Xylonite magnifying glass

By Scientific Inspirations

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Glass diameter 9.3 cm, 10.2 cm including the cell. Total length 21.5 cm. With brass mount. Read More...

07 Jul

SOLD – Four draw nickel silver telescope.

By Scientific Inspirations

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SOLD – A nickel silver 4 draw telescope, unsigned but no doubt from the Andrew Ross workshop as I have an identical one. It measures 7.75 inches when closed and 28.5 inches fully open. No dents or cracks. Damage free lenses. It gives an excellent clear view. Circa 1845. Read More...

07 Jul

EXCELLENT 5 INCH TRANSIT THEODOLITE WITH TRIG POINT TRIPOD BY TROUGHTON & SIMMS

By MikeRead

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THIS INSTRUMENT IS IN WONDERFUL CONDITION GIVING GOOD IMAGES WITH CROSS HAIRS INTACT, ON FOUR SCREW MOUNT. WEIGHS NEARLY 12 KILOS. TRIG POINT NOT INCLUDED. TRIG POINT: TRETHINGEY. SOUTH WEST CORNWALL. SHIPPING BY FEDEX, DHL, UPS, ETC. FULLY TRACKED. Contact Email: [email protected] Read More...

07 Jul

BRASS FRAMED TRANSITIONAL ENGLISH OCTANT

By MikeRead

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SHIPPING BY FEDEX, DHL, UPS, ETC. FULLY TRACKED. Contact Email: [email protected] IVORY EXEMPTION NUMBER TQ6TV8YP Read More...

05 Jul

Large Equinoctial Compass Sundial – Worthington & Allan.

By Scientific Inspirations

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The chapter ring measures 5″ (12.5 cm) across, the latitude bar reads from 0 – 60, the silvered compass dial reads from 0 – 90 – 0 etc and the outer ring engraved from 0 – 360 and reading to one degree. Case measurements 7″ x 7″. Superb condition and top quality. Worthington & Allan worked from 1821 – 1834 (successor to Mathew Berge). Read More...

05 Jul

BRASS SECTOR WITH SLIP CASE

By MikeRead

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POSTAGE ARRANGED, FULLY TRACKED. Contact Email: [email protected] Read More...

05 Jul

Vintage W. Watson & Sons Ltd – Bactil Monocular Brass Microscope – c1927, Cased

By Arcboutant Scientific

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Watson Bactil Monocular – circa 1927 in Brass with matching numbers storage case Offered for sale is a superbly engineered vintage original Bactil model microscope by W. Watson & Sons Limited of London. It dates to 1927 based on the sequential Watson production number of 38581, which is engraved onto the main optical tube. This example was originally retailed by Watson sales agent Baird & Tatlock of London, with an engraving to this effect also on the main tube. This inter-war Read More...

03 Jul

EXCELLENT POCKET 2 DRAW SMALL TELESCOPE , EASILY FOCUSES , IMAGE SHARP AND CLEAR

By Opticalworld

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BRASS WITH BLACK LAQUER BAND . WORKS VERY WELL , ALL PARTS UNSCREW , LENSES GOOD , Read More...