[RUSSIAN] Declaration of a patent of a ten-year privilege gr - Lot 329

Lot 329
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[RUSSIAN] Declaration of a patent of a ten-year privilege gr - Lot 329
[RUSSIAN] Declaration of a patent of a ten-year privilege granted to Mr Perrée for a heated air, gas and steam engine dated July 1842. Handwritten document on parchment received by the Department of Manufactures of St-Petersburg, through the State Councillor R. de Thal. With the wax seal to the arms of Russia. Paper burnished in places, traces of creases.
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