UK and Ireland Archives - Page 4 of 95

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Antique differential thermometer, about 100 years old A glass tube with a large sphere at each end, bent twice at right angles, containing strong sulfuric acid and supported in the middle by a wooden stand, forms the differential thermometer as invented by Professor Leslie. The instrument is designed to show and measure small differences in temperature. Educational model, taken from a Dutch school Height 4o cm, in complete and working condition (liquid inside) Read More...

06 Feb

Museum: Large Equinoctial inclining sundial George ADAMS C 1765

By Antiques Le Saint Georges

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Museum: Large Equinoctial inclining sundial George ADAMS C 1765. Engraved in hour circle G Adams London. Compass set into base plate Degree scale and height cardinal points rose highly decorated with floral designs On the back many latitudes for Europeans cities. The hour circle hinged to North side of base plate divided clockwise3.45 am – 8.45 pm numbered III-XII,I-VIII Circular arcs decorated with a wheat sheaf design support the gnomon,Pierced brass gnomon, folding flat when not in use. Latitude arc hinged to East side of Read More...

06 Feb

SOLD – Antique W. Watson & Sons – Edinburgh-C Brass Microscope – circa 1897, Cased

By Arcboutant Scientific

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Offered for sale is a very nicely presented example of Watson’s Edinburgh Student’s Stand-C model microscope in brass – it dates to around 1897 based on its serial number 4467. It’s marked W. Watson & Sons with manufacture well before the firm’s move to limited company status which occurred in 1908. This is a generally very good cosmetic example with few signs of wear and lacquered brass-work that’s retained most of its condition, which is remarkable considering the instrument’s Read More...

04 Feb

Three draw telescope and case by Dollond.

By Scientific Inspirations

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A very nice three draw telescope with a black enamelled barrel, the first draw is engraved, ‘Dollond, London. 5380’. It measures 10 inches long when closed and opens to 29 inches in length with a doublet main lens of just over 1.5 inches (4 cms). The first draw is constructed into 3 segments with a four lens arrangement, with an internal light stop fitted into the first segment; an arrangement thought to be based on the 4-lens eyepiece designed by John Read More...

31 Jan

SOLD – 5 micro-photographs J.B. Dancer.

By Scientific Inspirations

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SOLD – 5 x microscope slides, micro photographs by J.B. Dancer. 1. The Stream. 2. With The Stream. 3. The Village Blacksmith. 4. The Lord’s Prayer. 5. The Crucifixion. The slide ‘With The Stream’ has a small chip to the right, top corner. My photographs are not as clear as actual looking at them through the microscope! Read More...

30 Jan

Early Pillischer microscope (1860)

By Viafora

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Early awsome microscope made in London about 1860 by Moritz Pillischer. It has number 717 stylishly engraved in to the rear of the stand and comes with its’ case. There are no cracks or chips to the brass and the microscope has retained all of its’ original lacquered finish. There are the usual scuffs, marks and scratches you expect from a used item of this age. The drawtube moves up and down smoothly with its’ rack and pinion mechanism and the Read More...

29 Jan

FINE SET OF VICTORIAN GUNMETAL PUBLIC HOUSE MEASURES

By MikeRead

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SHIPPING BY FEDEX, UPS, PARCEL FORCE, ETC. FULLY TRACKED. Contact Email: [email protected] Read More...

28 Jan

RARE MINIATURE TRANSIT THEODOLITE BY LOUIS PASCHAL CASELLA.

By MikeRead

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SHIPPING BY FEDEX, UPS, PARCEL FORCE, ETC. FULLY TRACKED. Contact, Email: [email protected] Read More...

27 Jan

Early Wooden Telescopes, in Unusual Sizes

By TESSERACT

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SMALL POCKET TELESCOPE, English, early to mid-18th century. SOLD IMPRESSIVELY LARGE EXAMPLE OF THE LIGNUM TELESCOPE, English, c. early to mid-18th century, measuring 9″ (23 cm) overall of beautiful lignum vitae with brass end caps with dust slides (the brass now dark brown). The telescope separates in the middle for focusing. The eye lens is plano-concave with ground periphery, and gives fine erect images, small but of moderate magnification. Condition is excellent. Over the years we have had several English Read More...

27 Jan

The Dollonds’ Remarkable Split-Image Telescope

By TESSERACT

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“DESCRIPTION DE LA LUNETTE ACHROMATIQUE, AVEC LE MICROMETRE OBJECTIF ACHROMATIQUE DIVISE, FAITS PAR PIERRE ET JEAN DOLLOND, OPTICIENS DE SA MAJESTE, DANS LE CIMITIERE DE ST. PAUL, A LONDRES,” English, c. 1775, being a rare example of the separately published 20 page booklet describing Peter and John (II) Dollond’s refractor with its micrometric split-objective, that being a triplet achromat of 3-1/2 feet focal length. The large fold-out plate shows the instrument with its fine stand, long control rods, extra Read More...

27 Jan

FINE CARY DOUGLAS REFLECTING PROTRACTOR

By MikeRead

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SHIPPING BY FEDEX, DPD, UPS, ETC. FULLY TRACKED. Contact Email: [email protected] Read More...

27 Jan

SOLD – Antique Brass Microscope Large Nicol Prism Polariser 37-39mm Fit & RMS Analyser

By Arcboutant Scientific

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This listing is for a set of polarising hardware for an antique brass microscope comprising: – sub-stage nicol prism polariser (extra large) with rotation feature and degree scale with pointer 37-39mmm fit – nicol prism analyser with RMS male/female thread fitment and rotation feature The set is likely to date to around the 1910 period. I’ve tested the nicol prisms and extinction is achieved very easily on rotation, which I’ve also tried to demonstrate in some of the listing photos. The prisms are Read More...