World’s No.1 in “Technical Antiques”

German Aircraft Propeller, c. 1930 Black enameled wooden laminated two blade propeller, stamped 18442/80.17, length 84 in.<Br> Deutscher Flugz...

2 Military NATO Training Sets "Airplanes" 2 wooden suitcases with approx. 40 models of military planes from USSR, England and Canada, one ...

Flying Scale Model "Fokker D VII" (WWI) of 1916 Scale 1:5, a fine and large former WWI flying-model, fabric covered wooden airframe, worki...

"Märklin" Tri-Engine Airplane "Ju 52", 1996 Limited official re-make no. 1980 of the original from 1936, tin-plate with rub...

Impressive Model of "Messerschmitt: Me 163" 1:5 scale model of the first rocket powered aircraft in the world. The "Me 163" was ...

Gigantic Model of "Fokker DR Triplane" Scale 1:4. A fine and large former flying-model similar to the famous WWI fighter plane made notori...

Barometer, c. 1900 Unmarked, lacquered brass-scale, large mercury container with adjusting screw, length 41 in.<Br> Barometer, um 1900 Unbezei...

Surveyor's Barometer and Compass, c. 1900 Double brass pocket instrument, probably English, barometer with silvered dial (Ø 1 3/4 in.), dry...

Terrestrial Globe Manufactured by "Ludwig Julius Heymann, Berlin", 12 printed gores on papier-mâché sphere, Ø 6 in., suppor...

7 Physical Demonstration Valves 1) 3 x-ray tubes, 1 on wooden base, Ø up to 4 1/3 in., 1 tube with minor damages. - And: 2) 4 Crookes' tube...

Electrostatic Demonstration Set by "Leybold, Germany" For different physical experiments, including small Geissler tube.<Br> Ger...

2 French Physical Demonstration Models 1) Induction coil by "Radiguet & Massiot, Paris", on mahogany base (15 3/4 x 7 4/5 in.). - And:...

Giant Literature Lot: "Astronomy" 1) Approx. 80 books about astronomy, telescopes, space and science (1920-1980). - 2) Approx. 200 issues ...

Aerostatical Demonstration Model "Air-Pump" Manufacturer: "Rigg", polished brass on cast iron tripod, length of the pump 23 in.,...

"Magdeburger" Hemispheres, c. 1850 Used to demonstrate the air pressure, with engraving on lever: "Duchetet, Paris", brass, 1 pa...

Piston Tire Pump with Barometer, c. 1900 German scientific teaching material by Kroening's Sons, Magdeburg, with screwed on glass bulb and barom...

Demonstrator for Centrifugal Force "Deleuil, Paris", c. 1820 With 2 ivory balls on horizontal wire, brass mechanism on wooden base (27 1/2...

2 Physical Demonstration Instruments, c. 1900 1) Cast iron centrifugal machine, used as experimental motor, with sirene disc according to "Seeb...

Physical Demonstration Model "Faraday Wheel" Made in England by "Griffin & George Ltd.", wooden base, size: 10 x 6 2/3 in.&l...

Small Wimshurst's Electrostatic Machine, c. 1950 Manufacturer: "Griffin & George Ltd., London", dimensions 161/2 x 15 x 171/2 in.,...

Nairne's Electrostatic Machine, c. 1800 Early globe electrical machine, patented in 1782 by Edward Nairne (1726-1806), including glass cylinder ...

Spectroscope by "Schmidt & Haensch", c. 1900 Marked: "Franz Schmidt & Haensch, Berlin", serial number 2260, polished bra...

Vulcan Mercury Vacuum Gauge Manufacturer: "Paul & Kark, Hamburg", with instructions and conversion table, complete in wooden box.<B...

Universal Equatorial Pocket Sundial, c. 1850 Signed "Lorenz Graßl", Augsburg, octagonal dial with engraved flower and scroll decorati...

Equinoctical Sundial by "Secretan, Paris", c. 1850 Originally lacquered brass and silvered scale, with 2 spirit levels, in its original ca...

18th Century Horological Quadrant Paper on wood on the upper side, both sides with hand drawings, no sights and plumber, minor water stocks, 81/4 in.

Armillary Sphere, c. 1920 Model of the celestial sphere with the sun placed in the center, brass planets on iron rings, Ø 105/8 in., height: 20...

Tellurium and Map, c. 1900 Signed on globe: "Aardglobe te Groningen bij Scholtema en Zoon", costly constructed Dutch teaching aid, earthgl...

4 Microscopes 1) Ed. Mester, Berlin, with box. - 2) Binocular by Leitz, no. 296807. - 3) Part of a Chevalier microscope. - And: 4) Cast iron microscop

Brass Microscope, c. 1900 Unmarked, but probably Zeiss, height 121/2 in., triple nosepiece, fine adjustment, with name plaque "Dr. Robert Muenc...

Large Brass Microscope, c. 1920 German laboratory microscope, unmarked, probably "Zeiss", painted black, nosepiece for 4 objectives with 3...

Brass Microscope "Leitz", c. 1895 Signed: "E. Leitz, Wetzlar - branch New York", serial number 31825, lacquered brass, micromete...

Early Drum Microscope, c. 1840 Unmarked, probably German, lacquered brass, 93/4 in. high, with 6 lenses in mahogany case.<Br> Frühes Trom...

Laboratory Microscopes "Zeiss" and "Leitz" 1) Stereo-Microscope by "Ernst Leitz, Wetzlar", no. 407361, c. 1950, with b...

3 Special Microscopes 1) "Metaphot model 400", by Emil Busch, Rathenow. Universal device for the subjective microscopy. - 2) Binocular by ...

Binocular-Microscope "Himmler" and Literature Signed "O. Himmler, Berlin", no. 25556, c. 1920, triple-nosepiece, height: 13 in.,...

Travel Microscope "Voigtländer", c. 1924, and Books Marked "Voigtländer, Braunschweig", no. 52609, collapsible tripod,...

3 Copper Engravings "Microscopes", c. 1870 Size: 15 x 111/2 in., with passepartouts.<Br> 3 Kupferstiche "Mikroskopie", um ...

Technical Literature about "Optics" 1) 3 catalogues about scientific and precision instruments by Edelmann, Munich (1907), Krüss, Ham...

English Monocular Brass Microscope, c. 1850 By Horne, Thornthwaite & Wood, 123 Newgate St. London (engraved on round foot), 1 unmarked objective...

Brass Microscope "Beck's Star" No. 20364, first production c. 1885, this microscope is a bit younger. Very nice lacquer, height: 11 in...

Brass Microscope "Swift & Son", c. 1900 81 Tottenham Rd., London, W.C. Brass lacquered, height: 12 1/2 in. Double-lens microscope. 1 o...

Impressively large Brass Binocular Microscope, c. 1870 Baker, 244 High Holborn, London. Double objective nosepiece. Height 18 1/2 in. With accessories

Nuremberg Compound Monocular, c. 1750 Wooden base with cardboard made tubes between wooden rings at top and base, with mirror casing (no mirror), litt

French Compound Monocular "H. Müller", c. 1875 Large French brass microscope, marked on the tube "H. Müller", japanned...

Brass Microscope "Bryson, Edinburgh", c. 1880 Rare British microscope in typical "Leitz" design, brass, cast iron base, height 1...

2 French Microscopes 1) Travel microscope, c. 1900, signed: "Microscope Universel à Grossissement Variable", nickel-plated, overall h...

Brass Microscope "Carl Zeiss, Jena", c. 1870 No. 9612, height 11 3/4 in., objectives A, B and D with containers, unsigned ocular, with woo...

2 Brass Microscopes, c. 1880 1) Signed on tube holder "Nachet et Fils, Rue Serpente, Paris", lacquered brass, complete, 10 in. high. - And...

English Lucernal Microscope & Slides, c. 1820 Probably by "Carpenter", brass, with numbered set of 6 slides, complete in original case...

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...