World’s No.1 in “Technical Antiques”

Simple Microscope, c. 1760 Brass, ivory grip, lens with Lieberkühn reflector, tweezers, length 5 in.<Br> Einfaches Mikroskop, um 1760 Mes...

American Brass Travel Microscope, c. 1860 Probably by "Paul Roessler, New Haven, CT". With extensive microscopic accessories in drawer and...

Microscope "Nachet", c. 1870 Nachet, Rue St. Séverin, Paris. 2 objectives in containers, height 13 in., wooden case with key.<Br&g...

Large Sun Microscope "Charles Chevalier", c. 1850 "Microscope Solaire Achromatique Charles Chevalier, Ingenieur, Opticien, Brevet...

2 Microscopes 1) Berlin-type, green iron foot, with case. - And: 2) E. Leitz, no. 180102, with case.<Br> 2 Mikroskope 1) Typisches Berliner Mi...

Brass Microscope "Oberhäuser-Type", c. 1840 Probably France, height 13 1/3 in. 2 objective systems, 1 ocular. Mirror faulty, mahogany...

Drum Microscope, c. 1860 Unsigned, probably French or German, brass, lacquered, height 11 in., with mahogany case.<Br> Trommelmikroskop, um 18...

English Brass Microscope, c. 1850 Macrae, 34, Aldgate, London. Round massive brass foot, height 12 1/2 in. Screw-in tube similar to Jones-type. Object

Horizontal Measuring Microscope, c. 1860 Unsigned, brass on wooden base (renewed), with magnifying glass, height 10 in.<Br> Meß-Mikroskop...

Early Culpeper-type Microscope, c. 1780 English, unsigned, height 16 1/2 in., no mirror.<Br> Frühes Mikroskop Culpeper-Typ, um 1780 Engli...

Culpeper-type Microscope, c. 1820 Brass, lacquered, height: 10 in., rack-and-pinion movement, drawer for accessories with 4 objectives, 4 ivory specim

Brass Culpeper-Type Microscope, c. 1800 Unmarked, polished brass, with rack-and-pinion focusing, mahogany base with boss for the mirror, 11 in. high,

Microscope "C. Kellner's Nachf.: Fr. Belthle in Wetzlar" Fr. Belthle was successor to C. Kellner. No. 1007. Brass microscope. Original...

Brass Culpeper-Type Microscope, c. 1800 Unmarked, lacquered brass, draw tube with engraved focusing lines (1-4), turned mahogany base, 101/2 in. high,

Culpeper-type Microscope by "Gabriel Davis", c. 1830 Signed on tube "G. Davis, Leeds", polished brass, rack-and-pinion focusing,...

Compound Microscope "Dellebarre", 1786 (!) Lacquered brass, signed on tube: "Dellebarre 1786", height: 22 1/2 in., rack-and-pini...

Brass Microscope "Engelbert u. Hensoldt, Wetzlar" Serial number 135, lacquered brass, round black iron stand with additional borehole. Ori...

Solar Microscope: "Le Mégascope Héliographe de Bertsch", c. 1820 Size: 23 x 10 x 12 in. Unmarked. With French description by Dr....

Mahogany Preparation Chest 36 ivory bordered specimens, with handwritten titles on inner lid (list of microscopic objects), dimensions: 61/4 x 4 x 1/2

2 Measuring Instruments, c. 1900 1) Early precision protactor by "A.-G. Hahn, Cassel", serial no. 8641, lacquered brass, with highly sensi...

2 Brass Spherical Crosses, c. 1880 Unmarked. 1) Cylindrical, lacquered, with silver scale, Ø 3 1/2 in. - And: 2) Round, polished, Ø 2 1/3 ...

Tangent Galvanometer "B. Holsboer, Arnhem", c. 1875 Mahogany base with copper ring, 12 1/4 in. high, compass with silvered scale, 3 levell...

4 Galvanometers, c. 1900 1) According to Nobili, marked "Brady & Martin", mahogany base, glass dome, 11 in. high. - 2) Tangent galvano...

Surveyor's Plane Table Level "Secrétan, Paris" Marked. Lacquered brass level, serial no. 1345, with vertical pitch circle and ver...

Tachymeter Theodolite "Hildebrand" (Total Station), c. 1910 German lacquered brass theodolite, marked: "Hildebrand, Freiberg/Sa."...

Tachymeter Theodolite "Hildebrand", c. 1910 Marked: "Max Hildebrand früher Aug. Lingke, Freiberg, Sachsen, Nr. 62226", poli...

Early Level "Breithaupt & Sohn", c. 1810 Engraving: "W. Breithaupt & Sohn, Cassel", brass with lacquered base, two bubbl...

Tachymeter Theodolite "Hildebrand" (Total Station) German lacquered brass theodolite, marked: "Hildebrand, Freiberg/Sa.", no. 11...

Level by "G. De Koningh", c. 1900 Marked Dutch brass surveying instrument, no. 815, compass with silvered scale Ø 3 1/7 in., large bu...

Surveyor's Wye-Level "Jas. W. Queen", 1903 American brass level marked "Jas. W. Queen & Co., Philadelphia, 1903", lacque...

Brass Vernier Transit "W. & L. E. Gurley" Marked on compass dial: "W. & L. E. Gurley, Troy, New York", compass Ø 5 ...

Brass Telescope "Wray, London", c. 1900 Parallactic mounting, polished brass, length 55 in., on heavy-weight tripod, height 74 in.<Br&g...

Refracting Telescope "Merz/Fraunhofer", c. 1880 Brass refractor telescope, signed on the tube: "G & S Merz", former Fraunhof...

Early Mahogany Tripod for Telescopes and Surveying Instruments Length with closed legs: 5 1/6 ft., brass head, metal points, brass ring for transport.

2 Optical Benches Physical demonstration models, unmarked, with 5 lenses and 1 pinhole, lengths 9 1/2 and 13 3/4 in.<Br> 2 Optische Bänke...

Military Wide Base Rangefinder "Wild Heerbrugg" Base 80 cm, serial no. 439, with special tin container.<Br> Militär-Großba...

Trench Periscope by Moritz Hensoldt, 1918 Trademark "Wacht", serial number 14164, painted black, total length 4 4/5 ft. Bakelite eyepiece ...

3 Binoculars Black lacquered brass binoculars with leather-covered tubes: theatre glass, field glass, prism binocular with leather bag.<Br> 3 ...

Miniature Telescopes Used as pendants, magnifying 2x or 4x. 1) Brass, 2 extensions, length 1 1/2 in. - 2) Nickel plated brass and silver, 16 extension

Theatre and Marine Binocular Combination between theatre and marine binocular, interchangeable by slide, unmarked, black colored brass, leather-covere

Night Field Glasses "Busch Camponett (4 x 48)" Busch, Rathenow, Galileo field glasses with giant light intensity of 144! Central focusing....

Regiment's Binoculars Case Leather, brass coat of arms. Dimensions: 5 1/2 x 5 1/2 in. Inner dimensions: height 3-3 1/2 in., width 4 1/3 in.<B...

2 Cases for Military Prism Binoculars 1) Case with compass by Zeiss, 1920ies. - And: 2) Case for infantryman's binoculars, c. 1900.<Br> 2 ...

Prism Binoculars Case with Rangefinder Case marked "Carl Zeiss, Jena". Dealer's sign "J. Gambs, Lyon". In a separate leather...

3 Brass Telescopes 1) Historically important telescope, used in WWI, with engraving "Somme Argonne - 14.5.16", 3 extensions, length 16 1/2...

3 Brass Telescopes 1) Engraved on tube "Dollond, London", total length 6 1/4 in. - 2) Unmarked, 3 extensions, mahogany grip, total length ...

English Telescope "Harris & Son" Marked on tube: "T. Harris & Son, London, improved Day or Night", 2 extensions, brass w...

Large Telescope and Tripod Head Unmarked, lacquered brass, 5 extensions, total length 54 in.! With cap. - And: Tripod head for this telescope, made by

Focometer "Busch" Busch, Rathenow. For measuring dioptric power of spectacle lenses. Height 12 in.<Br> Scheitelbrechwert-Meßger...

Optical Rangefinder "Georg F. Brander, Augsburg", Germany, c. 1760 Exceptionally fine brass instrument by legendary German scholar and mec...