Upgrade to Chrome Upgrade to Firefox Upgrade to Internet Explorer Upgrade to Safari
Lot 1

A Large Exhibition ‘Dick’ Petrological Microscope,

Description

c.1891, English, signed to foot ‘J Swift & Son, London’ and further engraved by the original owner ‘T. A. Oliver’, standing on large cast brass foot finished in lacquered and oxidised brass, trunnions at top support body, large plano-concave mirror on gimbal below substage, substage assembly with rotating Nicol prism on fold out arm, iris diaphragm and focusing condenser all on rotating divided circle for angular measurement, square stage with Swift 2″ patent mechanical stage and main body to rear of stage incorporating the ‘Dick’ rotating mechanism with fine focus via screw and course focusing via diagonal rack work, body tube incorporating a sliding plate with wheel of apertures and slide in/out Bertrand lens, to top a rotating and folding analyser engraved with 45 degree positions, complete with five Swift objectives, three eyepieces and one blank, bullseye condenser, copy of the  book ‘Notes On A New Form Of Polarising Microscope’ by Allan B. Dick, published by ‘James Swift & Son 81 Tottenham Court Road, W, 1890’ and other accessories, all fitting on mahogany base under a large glass dome, 52cm in height


Sold for £6,800

Lot 1

A Large Exhibition ‘Dick’ Petrological Microscope,

Description

c.1891, English, signed to foot ‘J Swift & Son, London’ and further engraved by the original owner ‘T. A. Oliver’, standing on large cast brass foot finished in lacquered and oxidised brass, trunnions at top support body, large plano-concave mirror on gimbal below substage, substage assembly with rotating Nicol prism on fold out arm, iris diaphragm and focusing condenser all on rotating divided circle for angular measurement, square stage with Swift 2″ patent mechanical stage and main body to rear of stage incorporating the ‘Dick’ rotating mechanism with fine focus via screw and course focusing via diagonal rack work, body tube incorporating a sliding plate with wheel of apertures and slide in/out Bertrand lens, to top a rotating and folding analyser engraved with 45 degree positions, complete with five Swift objectives, three eyepieces and one blank, bullseye condenser, copy of the  book ‘Notes On A New Form Of Polarising Microscope’ by Allan B. Dick, published by ‘James Swift & Son 81 Tottenham Court Road, W, 1890’ and other accessories, all fitting on mahogany base under a large glass dome, 52cm in height

Sold for £6,800

This auction has closed.

Footer Call to Action