demonstration cutaway model of a SU-carburetor "MIC" on

4 Typewriter Demonstration or Cutaway Models 1) Official model of Siegener Maschinenbau A.G., for demonstrating lever play, ribbon transport, ribbon switching, switch lock, carriage guidance and carri

5 Typewriter Demonstration Models 1) Olympia, electric, partial cutaway model, with motor, carriage and parts of the mechanism. - 2) Adler, working model with 5 keys, tabulator and keys for the carria

UPDATED specifications. Salesman's demonstration cutaway sample Lamp Changer. External component labeled FA-148. Internal component labeled Model FA-238. Piece measures approximately 25" high, 13" wid

Canadian. Rare. 1:24 Scale. This larger scale model features a transparent acrylic body that allows one to view the cabin and cockpit. A model of this size and detail would likely have been on display

A very rare, original Leica III cut-away model, engraved on the top plate (inside of the rangefinder bay) with number '299', in very good condition and working order, an article in Vidom no.5 reveals

Collection of Physical Demonstration Models and Technical Devices 1) Carbon arc lamp, demonstration model by John Browning, London, original lacquered brass, 2 graphite electrodes, one height-adjustab

Cutaway Model of a Dactyle Calculator, c. 1900 Machine à Calculer Dactyle - Paris. No. 70, working condition. Schnittmodell einer Dactyle-Rechenmaschine, um 1900 Machine à Calculer Dactyl

4 Spoked-Wheel Calculating Machines and a Demonstration Model 1) Rema I, 1914 onwards, Braunschweiger Rechen­maschinenfabrik Rema GmbH, serial no. 4340, with 9, 8 and 13 digits, with wood base an

Tesla Coil Demonstration Model, c. 1915 With label: "Elektro Vulkan, Kromeriz", circular wood base, inner coil on porcelain isolator, outer coil on 3 glass columns, height 15 ¾ in., Ø 10 1/5 in.,

Bell Telephone Demonstration Model, c. 1900 Manufacturer: E. Leybold's Nachfolger, Coeln-Rhein. Open-works telephone model for demonstrating the mechanism, on mahogany base, very good original condit

Electrophysical Demonstration Model, c. 1890 France, marked "HRFA", mahogany, thick-walled glass container (fixed to the base), 6 electric connections, 2 coils, 2 electrodes inside of the glass, one s

Demonstration Model of the Single-Cylinder Steam Engine "Lady Margaret" Hand-cranked museum model, polished steel, brass and cast metal, mahogany-lagged cylinder Ø 3 1/5 in., crosshead guide in l

Demonstration Model of an Early Electric Motor, 1890 To demonstrate the windings of an armature, on turned wood base, height 15 in. Demonstrationsmodell eines frühen Elektromotors, 1890 Zur Darst

Zoetrope (Demonstration Model) Home-built large demonstration zoetrope, wooden base, drum Ø 11 ¾ in., crank drive, with 5 strips. Zoetrope (Demonstrations-Modell) Großes Demonstrations-Zoetrope aus

6 Typewriters Keyboard Demonstration Models 1) Torpedo, wall-mounted model, with indication of the angle degree in 4 steps. - 2) 3 x Adler, table models, with key, lever and platen, 2 different models

Countertop teaching tool. Works all the way. Made by Hohm. Measures 15" tall.

Unusual Cutaway Model of a Calculator Mechanism, early 20th Century Cross-section of a mechanical printing calculator with nine push-button digits, two readout wheels and rising ten-digit print bar, 8

Ambi Silette Cutaway Model, c. 1956 Agfa, Munich. Unnumbered body with elaborately incorporated viewing windows and interchangeable Color-Solinar 2.8/50 mm lens, still fully functional camera, shutter

4 Demonstration Model Electric Motors, c. 1910 Various models and constructions, height up to 7 in., untested. 4 Demonstrationsmodelle Elektromotoren, um 1910 Unterschiedliche Bauformen und Konstru

Cutaway Model of a Doppel-Torpedo Freewheel Scar, c. 1930-50 Fichtel & Sachs, Schweinfurt, Germany. With freewheel, coaster with 2 speeds and internal brake, on cast-iron base by F & S. Schnittmodell

English Telegraph Demonstration Model, 1902 Dated 1902; consisting of key, relay and sounder; on mahogany stained base, size 13 x 7 in. An excellent exhibition item. Englisches Telegraphen-Demonstrati

6 Typewriter Keyboard Demonstration Models Official factory models. 1) Mercedes, table model, with key and lever. - 2) Erika, Seidel & Naumann, table model, with key and lever. - 3) Triumph, table mod

A Painted Metal Piston Generator Demonstration Model Second Half 20th Century Property from a Midwest Collector

Demonstration Model of an Early Carbon Grain Microphone, c. 1900 With series resistor and switch, wood base stamped with no. 188937. Demonstrationsmodell eines frühen Kohle-körnermikrophons,