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The India Government Mint operates four mints in the country for the production of coins. They are in: * Mumbai, Maharashtra * Kolkata, West Bengal * Hyderabad, Telangana * Noida, Uttar Pradesh Under The Coinage Act, 1906, the Government of India is charged with the production and supply of coins to the Reserve Bank of India (RBI). The RBI places an annual indent for this purpose and the Government of India draws up the production programme for the India Government Mints on the basis of the indent. Besides minting coins, the mints at Mumbai, Kolkata and Hyderabad also make coin blanks. Hyderabad, Mumbai and Kolkata mints have gold assaying facilities and the Mumbai mint produces standardised weights and measures. Mumbai Mint has a state-of-the-art gold refining facility up to 999.9. Hyderabad Mint has electrolytic silver refining facility up to 999.9. Commemorative coins are made at Mumbai and Kolkata. Kolkata and Hyderabad have facilities for making medallions, too. The Noida mint was the first in the country to mint coins of stainless steel. ==Marks on mint== Each currency coin minted in India (and anywhere in the world) has a special mint mark on it to identify the mint. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「India Government Mint」の詳細全文を読む スポンサード リンク
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