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Austrian Morse Telegraph, c. 1900...
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French Dial Telegraph Set by Bréguet, c. 1855...
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Bréguet-Type Toy Telegraph by Biloret et Mora...
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Austrian Telegraph by J. Leopolder, Vienna, c...
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Soviet Cipher Machine "Fialka M-125-3" 10-Whe...
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Addi-Cosmos Adder, 1921...
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Burkhardt Arithmometer, 1919...
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2 Adix Adding Machines...
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Heureka Adding Machine, 1907...
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Mercedes/Gauss Calculator, 1907 onwards...
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Twin-Cylinder Compound Steam Engine...
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Working Model of a Single-Cylinder Overcrank ...
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Two-Cylinder Compound Steam Engine, c. 1920...
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Four-Cylinder Steam Engine with Boiler, c. 19...
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Steam Engine with Dynamo, c. 1920...
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Live-Steam Model of a Single-Cylinder Horizon...
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Demonstration Model "Murphy's Mechanical Move...
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2 Bing Steam Engines, c. 1930...
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4 Model Steam Engines, c. 1920-50...
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Early Steam Engine with Boiler, c. 1882...
