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8 German Morse Keys (Wehrmacht), c. 1942 1) Key T1, air force, Ln 26902. – 2) Army morse key, by
8 German Morse Keys (Wehrmacht), c. 1942 1) Key T1, air force, Ln 26902. – 2) Army morse key, by Koncki & Krüger, Berlin. – 3) Ditto with rare bas...
16 Russian Morse Keys Mostly robustly constructed military keys, manufactured between c. 1940 and
16 Russian Morse Keys Mostly robustly constructed military keys, manufactured between c. 1940 and 1980, including agent radio communication key an...
4 Semi-Automatic Morse Keys, 1960–1980 1) Model Rex, manufactured by Hannes Bauer, Germany. – 2) 2
4 Semi-Automatic Morse Keys, 1960–1980 1) Model Rex, manufactured by Hannes Bauer, Germany. – 2) 2 Japanese keys by Takatsuka, model BK-100, one d...
"The S & P Check Punch", c. 1895 Early American checkwriter. Zustand: (4/3) Scheckschreiber "S & P",
"The S & P Check Punch", c. 1895 Early American checkwriter. Zustand: (4/3) Scheckschreiber "S & P", um 1895 Früher amerikanischer Scheckperforat...
"Blickensderfer No. 8", 1907 American typewheel machine with tabulator and wood case. Zustand: (3/4)
"Blickensderfer No. 8", 1907 American typewheel machine with tabulator and wood case. Zustand: (3/4) "Blickensderfer No. 8", 1907 Amerikanische T...
Typewriter Repairman's Tool Kit, c. 1940 Attaché-type tool case, compiled for the Royal Typewriter
Typewriter Repairman's Tool Kit, c. 1940 Attaché-type tool case, compiled for the Royal Typewriter Company, including approx. 100 special tools an...
"Remington Portable", c. 1935 Excellent original condition. Zustand: (2/2) Remington Portable, um
"Remington Portable", c. 1935 Excellent original condition. Zustand: (2/2) Remington Portable, um 1935 Amerikanische Reiseschreibmaschine mit 4-r...
"Olympia Robust" (WWII), 1941 Military grey front-stroke typewriter of the WWII era. 4-row keyboard with "SS" key. Zustand: (2-/2) "Olympia Robus...
"Merritt", 1889 Attractive American index typewriter in fair condition. With mostly missing inking
"Merritt", 1889 Attractive American index typewriter in fair condition. With mostly missing inking mechanism. Serial no. 7945 – Historically impor...
39 Typewriter Ribbon Boxes of Tin, Cardboard and Bakelite A few with original typewriter ribbons.
39 Typewriter Ribbon Boxes of Tin, Cardboard and Bakelite A few with original typewriter ribbons. Zustand: (2-3/-) 39 Farbbanddosen aus Blech, Pa...
30 Circular Typewriter Ribbon Tins Various brands and manufacturers. Some with original typewriter
30 Circular Typewriter Ribbon Tins Various brands and manufacturers. Some with original typewriter ribbons. Zustand: (2-3/-) 30 runde Farbbanddos...
28 Typewriter Ribbon Tins Various brands and manufacturers, tin and bakelite. A few with original
28 Typewriter Ribbon Tins Various brands and manufacturers, tin and bakelite. A few with original typewriter ribbons. Zustand: (2-3/-) 28 Farbban...
27 Square Typewriter Ribbon Tins Various brands and manufacturers. Zustand: (2-3/-) 27 Farbbanddosen
27 Square Typewriter Ribbon Tins Various brands and manufacturers. Zustand: (2-3/-) 27 Farbbanddosen (viereckig) Lithographierte Blechdosen, vers...
"Darling", 1911 Attractive Swiss index typewriter by Gertsch & Cie., Fleurier. Swiss patent no.
"Darling", 1911 Attractive Swiss index typewriter by Gertsch & Cie., Fleurier. Swiss patent no. 52728. Made by Rymtowt-Prince Cie., Geneva, who al...
Kosmopolit, 1888 This is the 2nd German typewriter by sewing machine manufacturer Guhl & Harbeck,
Kosmopolit, 1888 This is the 2nd German typewriter by sewing machine manufacturer Guhl & Harbeck, Hamburg. At the time it was a popular index typ...
Malling-Hansen "Writing Ball", 1867Extremely rare nickel-plated "deluxe" version of the world's
Malling-Hansen "Writing Ball", 1867Extremely rare nickel-plated "deluxe" version of the world's first commercially produced typewriter, designed b...
Equatorial Minute Sundial, c. 1750 Signed: "Joh. Car. Seltman Fec. Brunsv.", fire-gilded brass,
Equatorial Minute Sundial, c. 1750 Signed: "Joh. Car. Seltman Fec. Brunsv.", fire-gilded brass, finely engraved with blossoms and leaves, silvered...
Klodt's Astronomical Teaching Clock, c. 1900 "Klodt's Astronomische Lehruhr", manufactured by "
Klodt's Astronomical Teaching Clock, c. 1900 "Klodt's Astronomische Lehruhr", manufactured by "Deutsche Lehrmittel-Anstalt Franz Heinrich Klodt, F...
The Star Sky at Every Hour of the Year, c. 1900 Rotating star map, by A. Klippel in Dortmund,
The Star Sky at Every Hour of the Year, c. 1900 Rotating star map, by A. Klippel in Dortmund, published by "Deutsche Lehrmittel-Anstalt Franz Hein...
"Heron's Ball" or Aeolipile First radial steam turbine based on drawings by Heron of Alexandria,
"Heron's Ball" or Aeolipile First radial steam turbine based on drawings by Heron of Alexandria, ornamental cast-bronze base, three-flame spirit b...
2 Sun Dials and 1 Nocturnal Copies of medieval instruments. 1) Horologium nocturnum, brass, length
2 Sun Dials and 1 Nocturnal Copies of medieval instruments. 1) Horologium nocturnum, brass, length 10 in., used to determine the time based on the...
Orrery by Feinwerktechnik Leipzig, c. 1970 GDR demonstration model, with electric motor and zodiac
Orrery by Feinwerktechnik Leipzig, c. 1970 GDR demonstration model, with electric motor and zodiac signs, globe loose, length 31 ½ in., untested. ...
2 Terrestrial Globes of 4¾ -Inch Diameter, c. 1910 On turned wooden bases, marked: Chez L'Auteur and
2 Terrestrial Globes of 4¾ -Inch Diameter, c. 1910 On turned wooden bases, marked: Chez L'Auteur and Hachette & Cie, Paris, on turned wood stands,...
Battery of 2 Leyden Jars, c. 1915 Manufactured by Max Kohl, Chemnitz, in wood tray on 4 insulating
Battery of 2 Leyden Jars, c. 1915 Manufactured by Max Kohl, Chemnitz, in wood tray on 4 insulating porcelain legs, overall size 17 1/3 x 6 3/4 x 2...
Battery of 4 Leyden Jars, c. 1910 In wooden frame, overall size 7 ½ x 7 ½ x 8 ¼ in. Zustand: (
Battery of 4 Leyden Jars, c. 1910 In wooden frame, overall size 7 ½ x 7 ½ x 8 ¼ in. Zustand: (3+/-) Leydener Flaschenbatterie, um 1910 4 Flaschen...
Electro-Physical Experimental Set, c. 1910 France. "Electricité – Paris", consisting of two chrome-
Electro-Physical Experimental Set, c. 1910 France. "Electricité – Paris", consisting of two chrome-acid cells, electromagnetic motor, two Geissler...
Large Physical Experimental Model, c. 1910 Electric rocker switch, 10 mercury switches, 10 inductor coils, 10 connectors, ground board 25 ¾ x 11 ¾...
Electro-Physical Demonstration Model, c. 1910 Manufactured by Arthur Pfeifer, Wetzlar. With two
Electro-Physical Demonstration Model, c. 1910 Manufactured by Arthur Pfeifer, Wetzlar. With two Leyden jars, short spark gap, vertical coil, switc...
7 Scientific Instruments, c. 1915 1) High-voltage transformer, 120–5000 V. – 2) 2 electric magnets. – 3) Handcrank by Radiguet & Massiot. – 4) Bar...
Polarization Apparatus after Nörremberg, c. 1905 Manufactured by Leybold, Cologne. Frame with
Polarization Apparatus after Nörremberg, c. 1905 Manufactured by Leybold, Cologne. Frame with adjustable polarization mirror, height 17 ¾ in., inc...
English 18th Century Ebony Pantograph Unsigned, made of ebony, brass and bone, 3 feet with bone
English 18th Century Ebony Pantograph Unsigned, made of ebony, brass and bone, 3 feet with bone wheels, length 29 in., in fitted mahogany case, ha...
5 Vintage Measuring Instruments, c. 1910 1) Large lecture theatre ammeter for continuous current,
5 Vintage Measuring Instruments, c. 1910 1) Large lecture theatre ammeter for continuous current, height 17 3/4 in. – 2) 3 medium-sized ammeters. ...
High-Voltage Apparatus after Tesla, c. 1980 Large physical demonstration model, with spark gap,
High-Voltage Apparatus after Tesla, c. 1980 Large physical demonstration model, with spark gap, height 23 in. Zustand: (3/-) Hochspannungsapparat...
2 Magnetic Demonstration Models, c. 1915 Manufactured by Max Kohl, Chemnitz. 1) Electro-magnet, with
2 Magnetic Demonstration Models, c. 1915 Manufactured by Max Kohl, Chemnitz. 1) Electro-magnet, with tray and keeper. – And: 2) Horseshoe permanen...
Voltaic Pile after Alessandro Volta Detailed copy by G. Guatterini, consisting of 16 copper-zinc
Voltaic Pile after Alessandro Volta Detailed copy by G. Guatterini, consisting of 16 copper-zinc elements and 2 electrodes, in glazed case, height...
Demonstration Apparatus with 2 Induction Coils, c. 1910 2 Ruhmkorff induction coils with oak
Demonstration Apparatus with 2 Induction Coils, c. 1910 2 Ruhmkorff induction coils with oak planking, connected and mounted on wood base, lengths...
Physical and Technical Reference Books Traité Théorique et Pratique des Machines Dynymo-Électrique, Silvanus P. Thompson, Paris 1886 – Collec-tion...
2 Volumes of Le Mécanicien Moderne, c. 1910 Le Mecanicien Moderne par un Comité Ingénieurs spécialistes. Paris: Librairie Commerciale, 9 ½ x 13 in...
Collector Literature: Scientific Instruments, Automata and additional Themes Public Private Science – The King George III Collec-tion, Alan Q. Mor...
"Magazin aller neuen Erfindungen, Entdeckungen und Verbesserungen", 1798–1830 Magazine of all New
"Magazin aller neuen Erfindungen, Entdeckungen und Verbesserungen", 1798–1830 Magazine of all New Inventions, Discoveries and Improvements. The "M...
3 Electro-Physical Demonstration Models, c. 1915 1) Stand with 2 copper spirals separated by a glass
3 Electro-Physical Demonstration Models, c. 1915 1) Stand with 2 copper spirals separated by a glass cylinder, with an incandescent lamp, height 1...
Electro-Physical Demonstration Models, c. 1915 1) Hollow metal cylinder, on glass pillar, height
Electro-Physical Demonstration Models, c. 1915 1) Hollow metal cylinder, on glass pillar, height 18 7/8 in. – 2) Faraday cage, height 15 in. – 3) ...
Device for Demonstrating the Rotation of a Conductor around a Stationary Magnet, c. 1915 Signed: "E.
Device for Demonstrating the Rotation of a Conductor around a Stationary Magnet, c. 1915 Signed: "E. Ducretet et Cie, Paris". Brass, height 16 1/6...
Geissler Tube with Uranium Glass Flower, c. 1915 On turned wooden base, overall height 13 in.
Geissler Tube with Uranium Glass Flower, c. 1915 On turned wooden base, overall height 13 in. Zustand: (2-3/-) Geißler'sche Röhre mit Uranglas-Bl...
Six-Part "Pile de Grenet" Battery, c. 1910 Glass flasks, with 1 zinc and 2 carbon plates, heights
Six-Part "Pile de Grenet" Battery, c. 1910 Glass flasks, with 1 zinc and 2 carbon plates, heights between 10 1/5 and 13 in. Zustand: (3+/-) 6 Chr...
French Experiment Box for Demonstrating Electricity, c. 1910 "Expériences Electriques", with 2 wet-
French Experiment Box for Demonstrating Electricity, c. 1910 "Expériences Electriques", with 2 wet-cell batteries (one glass damaged), induction c...
2 Vacuum Tubes with Phosphorescent Material, c. 1915 1) Vacuum bulb with parrot, height 13 3/4 in. –
2 Vacuum Tubes with Phosphorescent Material, c. 1915 1) Vacuum bulb with parrot, height 13 3/4 in. – And: 2) Vacuum bulb with rose, height 9 ½ in....
28 Vacuum Tubes by Leybold, c. 1915 1) Vacuum scale, Cross' form, 6 Geissler tubes on stand. –
28 Vacuum Tubes by Leybold, c. 1915 1) Vacuum scale, Cross' form, 6 Geissler tubes on stand. – And: 2) 22 tubes, filled with neon, argon, helium a...
Group of Vacuum Tubes, c. 1915 Physical demonstration models. 1) Geissler tube lighting up by
Group of Vacuum Tubes, c. 1915 Physical demonstration models. 1) Geissler tube lighting up by friction, length 19 1/3 in. – And: 2) 10 various Gei...
Electrostatic Demonstration Models, c. 1915 1) 2 dischargers, on long glass isolators, height 24 4/5
Electrostatic Demonstration Models, c. 1915 1) 2 dischargers, on long glass isolators, height 24 4/5 in. – 2) Vacuum tube, length 41 in. – 3) Ligh...
Crookes Tube with Fluorescent Minerals, c. 1915 On turned wooden base, overall height 8 ½ in. – In
Crookes Tube with Fluorescent Minerals, c. 1915 On turned wooden base, overall height 8 ½ in. – In addition: Geissler tube for 4 liquids, height 1...
3 Lecture Theatre Barometers, c. 1920 Two by Proloba – Paris, with mercury, height each 14 1/5 in.
3 Lecture Theatre Barometers, c. 1920 Two by Proloba – Paris, with mercury, height each 14 1/5 in. The third unmarked, height 18 7/8 in. Zustand: ...
6 Physical Demonstration Tubes, c. 1915 1) Maltese cross tube, length 11 in. – 2) X-ray tube, length
6 Physical Demonstration Tubes, c. 1915 1) Maltese cross tube, length 11 in. – 2) X-ray tube, length 7 in. – 3) Puluj's radiometer, height 9 in. –...
2 Reflecting Galvanometers, c. 1915 1) With 2 sliding coils and scale, on polished wooden board with
2 Reflecting Galvanometers, c. 1915 1) With 2 sliding coils and scale, on polished wooden board with 3 adjustable feet, size 12 ½ x 6 ¼ x 11 2/5 i...
4 Physical Demonstration Tubes, c. 1915 1) 3 Crookes tubes for experiments with radiant matter, with
4 Physical Demonstration Tubes, c. 1915 1) 3 Crookes tubes for experiments with radiant matter, with stands, height up to 14 1/5 in. – And: 2) Pul...
Audio Oscillator Tuning Fork, c. 1915 With adjustable electric magnet, length 15 in. – In addition: Electro-magnetic sounder, with brass horn. Zus...
FAC Universal Construction System, c. 1960 Manufactured by Transitoria Trading Company, Sweden.
FAC Universal Construction System, c. 1960 Manufactured by Transitoria Trading Company, Sweden. Large kit for engineers and students, perfect for ...
Sliding Induction Coil based on Design by Du Bois-Reymond, c. 1900 Manufactured by Ludwig Schulmeister, Vienna. With chrome acid cell, coil length...
Induction Coil based on Ruhmkorff Design, c. 1910 Manufacturer: Max Kohl, Chemnitz. No. 3808, 6 V, 2
Induction Coil based on Ruhmkorff Design, c. 1910 Manufacturer: Max Kohl, Chemnitz. No. 3808, 6 V, 2 A, length of the coil 7 ¼ in., changeover swi...
Siemens & Halske Direct-Current Motor, c. 1920 Exciter generator, model G 2.5, on heavy cast-iron
Siemens & Halske Direct-Current Motor, c. 1920 Exciter generator, model G 2.5, on heavy cast-iron base, overall size 11 ¾ x 6 ¼ x 8 ¼ in. Zustand:...
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