Janos N. Belhazy
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* Körmöcbánya, April 19, 1823 – † Budapest, April 20, 1901 / numismatist ; ; He studied at the Mining and Forestry Academy in Selmecbánya, graduating in 1844. In 1871 he became president of the Kolozsvár Mining Directorate, later appointed as an advisor to the Ministry of Finance. He retired in 1895. He regularly collected coins, leaving his numismatic collection to the Körmöcbánya Mint. He wrote numerous articles in Hungarian and German on the history of coins and coinage. ; ; Main work: The Old Hungarian Coinage Weights, 1889.