A Polarizing Microscope By Hartnack,

An Ernst Leitz Polarizing Microscope. Wetzlar, Germany, Circa 1910Engraved to the lacquered base "E. Leitz, Wetzlar, No 128150”, with black enameled iron limb and horseshoe base, in fitted mahog

A Cased Spencer Model No. 37 Compound Monocular Polarizing

2 small cast iron microscopes, 1 Winnit 3 lens microscope in original box with accessories, 1 Nisco 900x zoom polarizing microscope in original box with accessories, 1 Tower zoom 50-750x microscope in

French Microscope by Hartnack, c. 1875 Paris. Original lacquered brass, draw tube, milled-head screw fine adjustment, tilting stand, incident-light magnifier, "Gluschanovsky" signed on foot and case,

New York,Circa 1892 Includes a brass polarizing light microscope with wood travel case and accessories. Brass, wood Case marked "E. Leitz Wetzlar" to top, microscope marked "E. Leitz Wetzlar No. 25002

MID-19TH CENTURY POLARIZING VICTORIAN BRASS MICROSCOPE IN FITTED BOX WITH BOX OF 19TH CENTURY LABELED SLIDES OF INSECTS. Hinged-top mahogany box contains 12 trays of six slides each, all identified w

French brass compound non-inclining microscope #14698 by E.Hartnack and A. Prazmowski, 1 Rue Bonoparte, Paris, c 1875. Cased with key and 3 eyepieces, 3 objectives, 3 diaphragms and other assorted too

Drum-Pattern Microscope, c. 1860 Probably by Hartnack, Paris, original lacquered brass, 3-inch weighted base, draw tube, fine screw adjustment beneath the pillar, concave mirror, pinhole diaphragm, 1

French. 1868-1875. Brass. In original fitted case featuring dovetailed construction. Includes a cased assortment of lenses. Engraved, "C. Verick Special de E. Hartnack rue de la Perchuminiere 2, Paris

A Henry Crouch Binocular Microscope #3323, 19th Century, Signed on rear foot with three eye pieces, four objectives, polarizing apparatus, eight clear glass slides, sub stage condenser mirror. In a ma

Antique French Portable Microscope by Schaeffer & Budenberg in Buckau-Nagdeburg, Ocular & Unsen system von E. Hartnack, de George Oberhauser, A Paris, Gebrauchs Anweisung, No. 256. Engells Patent. Siz

French Compound Microscope, French, c.1860 engraved to the drawer tube 'G. Oberhauser et E Hartnack Palace Dauphine 21 Paris' with circular lead filled base concave mirror, simple stage, push/pull foc

3 French Brass Microscopes 1) Signed: "C. Verick, élève spécial du Hartnack, rue de la Parcheminerie 2, Paris", c. 1870. Horseshoe base, rectangular pillar, capped with inclination joint, swiveling

2 Microscopes 1) Signed on the tube "Dr. E. Hartnack, Potsdam", original lacquered brass, leaded horseshoe foot, missing mirror, draw tube, screw fine adjustment, height 10 5/8 in., c. 1875. – And:

* A German Brass and Black Lacquered Microscope r. fuess, berlin, early 20th century number 544 with a fitted wood case and additional accessories. Height 13 1/2 inches. Estimate $100-200 Property fro

Nice antique R. Fuess Berlin No. 392 Microscope - with all accessories and box. Great overall condition

Dutch Compound Monocular Chest Microscope, c. 1780 Cuff-type brass microscope with gimbaled 1 1/2 in. single mirror, three-arm stage on sliding block for coarse focusing, milled-head screw fine adjust

Double-Pillar Binocular Polarization Microscope Compendium by R & J Beck, c. 1880-85 Signed on the foot "R & J. Beck London 12836"; original lacquered brass, the "Large Best" by the prestigious firm,

(lot of 2) Microscope group, consisting of antique examples executed in brass, one in a fitted case, plus extra lenses, 20"h

A Rare Cased Smith and Beck Binocular Microscope with Thomas Glazebrook Rylands Archive, circa

English Compound Monocular Chest Microscope by Nairne & Blunt, c. 1790 Cuff-type, signed on the Bonanni stage "Nairne & Blunt, London". All brass, original lacquer, square pillar hinged at one side of

Rare German Brass Microscope, c. 1830 Signed on the tube "L. Veitshans in Hamburg", original lacquered brass, folding tripod stand, triangular column, large concave single mirror, Ø 2 1/3 in., unusua

English, c. 1880, signed around the base 'Watson & Sons, 313 High Holborn, London', constructed of lacquered brass with adjustable bullseye condenser, oil bottle, shade (broken), in original polished

The all brass Martin-type compound microscope circa 1790 with various slides and accoutrements as shown is signed Gilbert & Co, London in hand engraved script on one beam of the tripod foot. A much la