Lot Essay
CF.
Details
A LATE 19TH-CENTURY LACQUERED-BRASS COMPOUND BINOCULAR MICROSCOPE,
SIGNED ON THE STAND R & J BECK 31 CORNHILL LONDON NO. 5068, THE BODY-TUBES WITH INDIVIDUAL RACK AND PINION ADJUSTMENT, THE MAIN FOCUSING BY RACK AND PINION COARSE ADJUSTMENT WITH MICROMETER FINE FOCUSING, WITH PRISM, QUADRUPLE NOSE-PIECE, MECHANICAL CIRCUIT STAGE WITH RACK ADJUSTMENT, SUB-STAGE CONDENSER AND PLANO-CONCAVE MIRROR, THE LIMB RAISED ON TWO TAPERING PILLAR SUPPORTS ARRANGED TO ROTATE ON THE Y-SHAPED STAND, WITH A SUPPLEMENTARY CASE OF ACCESSORIES CONTAINING EIGHT EYEPIECES, FIVE OBJECTIVES, ABBE CONDENSER, BULL'S-EYE CONDENSER FOR LIMB MOUNTING, AND OTHER ITEMS (MAIN BULL'S-EYE CONDENSER LACKING), CONTAINED IN THE ORIGINAL MAHOGANY CARRYING CASE WITH SWING BRASS HANDLE -- 20IN. (50.8CM.) HIGH, AND A PLUSH-LINED LEATHER COVER OUTER PROTECTIVE CASE
SEE COLOUR ILLUSTRATION
SIGNED ON THE STAND R & J BECK 31 CORNHILL LONDON NO. 5068, THE BODY-TUBES WITH INDIVIDUAL RACK AND PINION ADJUSTMENT, THE MAIN FOCUSING BY RACK AND PINION COARSE ADJUSTMENT WITH MICROMETER FINE FOCUSING, WITH PRISM, QUADRUPLE NOSE-PIECE, MECHANICAL CIRCUIT STAGE WITH RACK ADJUSTMENT, SUB-STAGE CONDENSER AND PLANO-CONCAVE MIRROR, THE LIMB RAISED ON TWO TAPERING PILLAR SUPPORTS ARRANGED TO ROTATE ON THE Y-SHAPED STAND, WITH A SUPPLEMENTARY CASE OF ACCESSORIES CONTAINING EIGHT EYEPIECES, FIVE OBJECTIVES, ABBE CONDENSER, BULL'S-EYE CONDENSER FOR LIMB MOUNTING, AND OTHER ITEMS (MAIN BULL'S-EYE CONDENSER LACKING), CONTAINED IN THE ORIGINAL MAHOGANY CARRYING CASE WITH SWING BRASS HANDLE -- 20IN. (50.8CM.) HIGH, AND A PLUSH-LINED LEATHER COVER OUTER PROTECTIVE CASE
SEE COLOUR ILLUSTRATION