UK and Ireland Archives - Page 53 of 103

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The scotometer was introduced in the first decade of the last century by Sir Richard Cruise, an eminent British ophthalmologist, who, among his other honors was eye doctor to George V and Queen Mary from 1918 to 1936. Scotometers are used for detecting blind spots in the visual field. Dixey is a 200-year-old London optical firm that now only sells spectacles but early in the last century they manufactured instruments as well. The scotometer is not ivory but rather Read More...

22 Nov

Black Friday Sale – Dudley Adams Mini Theodolite – Circa 1800

By The Compleat Surveyor

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I have meaningfully discounted (10% to 40% 0ff) a good number of my nicer instruments – please check out my Black Friday Sale at: Black Friday 2023 I’ve updated my website to include ancient surveying instruments (1500 to 1800). The update includes a good deal of information related to the evolution of surveying instruments during that time period. The update also includes information regarding some of the important instrument makers during the period – this new section is still a Read More...

22 Nov

Eighteenth Century Pewter

By curiousscience

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Good pewter “Bubby” pot c1780. This early baby feeder is in good condition with a pleasing patina. There is an old fracture to the top of the feeding spout and some wear to the base as in the images. Read More...

19 Nov

A Cased 1800s Tortoiseshell & Tinted Blue Glass Spectacles.

By JP Antiques

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These 1800’s spectacles are in very good condition., Their short tapered side arms were made to grip the temples. 2 small pin holes could have held cord to put around the head . The red leather case is original but tatty. There is no makers name. Read More...

19 Nov

Early Georgian Silver Wig Spectacles in a Shagreen Case.

By JP Antiques

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These 1750’s Silver Wig Spectacles are in great condition. They are unmarked, apart from the number ‘8’ on one of the arms. They are in a their Shagreen case of the same date. The case has small splits on its hinge. The catch just catches. Read More...

19 Nov

A cased pair of 1830’s Tortoiseshell & tinted glass spectacles.

By JP Antiques

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These are in great condition & have been in my collection for over 20 years. Read More...

18 Nov

three draw telescope.

By Scientific Inspirations

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19th century telescope measuring 82 cms long fully open and 29 cms when closed with an objective aperture of 32 mm. It has an end cap and eye-piece dust slider. Magnification is 20 x. Very clean giving a fine, sharp image. Read More...

17 Nov

MARQUOIS SCALES SET

By Victor Burness

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The box contains a boxwood square and two boxwood rules. The scales on the rules range between 20 and 60 with matching offsets. Manufactured by W Cox Devonport. It has an additional name Charles Schofield, who was probably the owner. One offset has a chip on one edge Read More...

13 Nov

Microscope cloth counting glass by J. Casartelli & Son

By Hatchwell Antiques

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Microscope cloth counting glass by J. Casartelli & Son of Manchester. Circa 1910. In original black leather case with satin and velvet lining. Marked: J. CASARTELLI & SON SALFORD.6. Rd 523462. Registered design number: 523462 (1909). Scales divided in to: 0 – ¼ – ½ – 1 inch. and 1 – 10 mm. Base marked: 23. Case dimensions: 6.5 x 5.5 x 3.5 cm. Read More...

11 Nov

Compass sundial Watkins Bristol

By Van Leest Antiques

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Cased pocket compass and sundial by Watkins Bristol, England of the 1820’s. Signed on the compass as well as the sundial. The compass has a diameter of 6,5 cm. The compass rose is very detailed and he metal is coloured blue. To set the compass a click-system is installed. When clicked the arrow will be pushed a little and is set to the right direction. The sundial is set by two pinholes and can be clipped upwards. Case dimensions: 7,8 Read More...

10 Nov

Richardson’s Sphygmograph

By Fletcher

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This device is a modification of the Dudgeon, but with a 2 inch rod which extends and has an adjustable weight to adjust the pressure rather than a screw spring. The clockwork mechanism turns the smoked paper on a rod drive. the rod has a series of plates to mark the paper and provide a scale of height. See N. H. Naqvi and M. D. Blaufox page 110. Case lid distressed as shown-Label for retailer ‘Medicinisches Waarenhaus, Berlin’-most likely manufactured Read More...

03 Nov

Early 19th c. ‘Improved telescope’ by Richardson.

By Scientific Inspirations

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This telescope has a large pancratic eye-piece tube (variable power) and is signed, ‘Richardson, London’, and also engraved with a letter ‘A’ on the eye-piece and additionally engraved on the first draw, ‘Adjustment for Greater Magnification power, for Day or Night’. Also around the back collar, ‘Improved Telescope’. Quite a large two draw telescope (3 draw if you include the pancratic draw) measuring 45.5″ fully extended and 15.5″ closed. It has a ray shade with a removable end cap and sliders at Read More...