Antique & Scientific Instruments U.K.
MICROSCOPES and ACCESSORIES for sale
VINTAGE BAKER INTERFERENCE MICROSCOPE - A 20th century Interference Microscope with petrological and dark ground facilities. The instrument has both binocular and monocular eye sets, quickly exchangeable single and triple nosepieces, three, interference objective/sub stage condenser pairs (X10, X40 & X100) and a darkfield objective/sub stage condenser (X100) pair. There is a plano-concave mirror plugged into the limb beneath the sub-stage. The sub-stage has built-in lever operated iris, filter holder and separate lever operated polariser. Focussing the sub-stage is by rack & pinion thumbwheel and the sub-stage has the quick change facility for condensers. The centering/rotating stage is graduated 0 – 360 degrees and course & fine focus is by racking the whole stage assembly. Above the nosepiece is a lever for mon/bi use by sliding a small correcting lens into or out of the light path, a slider with a quarter waveplate, a rotating polarising disc graduated 0 – 240 degrees with a magnifier to help read the scale. The whole body tube assembly is removable and clamped in place with a small lever on the right side of the body tube. The binocular eye set rotates and inter-ocular separation is swinging out the eyepieces. The binocular set is replaced by a monocular set by un-screwing the ring at the top of the eyetube. As well as all the built-in features, this microscope comes with a separate goniometer eyepiece set comprising 0-360 degree graduated base with lever operated iris, above which is a sliding 6 order quartz wedge with micrometer scale and a sliding eyepiece filter pair, with magnifier. There are also two pairs of eyepieces (X5 & X10) for the binocular set and two monocular eyepieces (X7.5 micrometer & a telescoping variable power).
A very comprehensive Ross (No.2) antique microscope set, engraved on the base Ross, LONDON, 4013, made in about 1875, fitted in a fine two door mahogany case which has been modified over the years to suit successive owners preference in accessories, of which there are plenty. The doors can be opened both back and front in order to get to all the accessories. The "U" shaped base of the instrument unscrews from the "Y" shaped foot. This microscope has rack & pinion course focusing and limb mounted long lever fine focus. The square stage has a slide bar. The mechanical sub-stage is controlled by the thumbwheel and has 2 centring thumbscrews. The sub-stage plano-concave mirror is mounted on an articulated arm. The lacquer is all original and has about a 98% cover with some age spotting. The eyepiece, accessories comprise 4 different powered "top hat" style oculars (A, B,C & D) and a blue tinted camera lucida. The objectives and above stage accessories, include 5 objectives in brass cans, two of which (1/5th & 1/8th) are cover correction types. Cover correction type objectives (as shown in Turner's "Great Age" book, p167), were invented by Andrew Ross in 1837, to allow corrections to be made for the thickness of the cover slips used by different slide preparers. There is a compressor, live box, twin nosepiece changer, two other accessories and an analyser, which fits inside the body tube above the nosepiece. The sub-stage items comprise a dark ground, an Abbe type condenser with a lever operated iris with filter ring, general purpose condenser with centring screws, a poleriser and a wheel of stops condenser. There are also some glass tubes, wood handled spikes & scalpel, forceps and a free-standing bullseye condenser. The microscope and accessories come in a fitted 2 door mahogany case with inset brass handle and lock & (replacement) key. - £1950
MICROSCOPE SLIDES AND ACCESSORIES
Photomicrography, in theory & practice - Schillaber, 1949 - £25
Modern Microscopy by Cross & Cole, 1922- £25
The Microscope - A Simple
Handbook by Conrad beck (R & J
Beck) 1923 - £15
Practical Microscopy by
L.C.Martin and B.K.Johnson, 1931 - £10
Microscopes and microscopic
life by Peter Healey, 1969 - £15
The Microscope - A Practical
Handbook, by A.H.Drew & L. Wright, 1922 - £15
Common Objects of the microscope - J G Wood, 2nd ed. - £15
microphotographs, then this book on Stanhopes is a must.
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last updated 23/03/17