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Personalities
Wolfgang Kempelen
Catalogue Number:  48
Stamp Design:  Jozef Baláž
Graphic Lay-out and Stamp Engraving:  Martin Činovský
Date of Issue:  December 12, 1994
Printing:  Postal Stationery Printing House, Prague, Czech Republic
Print Technology:  Rotary-recess printing combined with recess printing
Print Run:  3,450,000
FDC Design:  Jozef Baláž
FDC Engraving:  František Horniak
Cancellation Design:  Jozef Baláž
Printing:  Postal Stationery Printing House, Prague, Czech Republic
Print Technology:  Recess printing from flat plates
FDC Print Run:  10,000

Wolfgang Kempelen
(23. 1. 1734 Bratislava - 26. 3. 1804 Vienna)

- polymath, mechanic, inventor, director of a salt mine in Transylvania, councillor of the Hungarian Transylvanian Office in Vienna. In 1778 Kempelen constructed a speech machine based on imitation of human vocal organs. Of his other inventions the most famous are a chess machine and a writing machine for the blind. He also built a pontoon bridge over the river Danube and constructed a pressurised watercourse to take water from the Danube to Bratislava Castle. In Vienna he designed an irrigation system for the Imperial residence at Schonbrunn.


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Year 1994
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