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  2. Coins of the Indian rupee - Wikipedia

    en.wikipedia.org/wiki/Coins_of_the_Indian_rupee

    New coins have been produced annually since then and they make up a valuable aspect of the Indian currency system. Today, circulating coins exist in denominations of 1, 2, 5, 10, and 20 rupees. All of these are produced by four mints located across India, [2] in Kolkata, Mumbai, Hyderabad, Noida.

  3. India Government Mint - Wikipedia

    en.wikipedia.org/wiki/India_Government_Mint

    The India Government Mint (ISO: Bhārata Sarakāra Ṭakasāla) operated four mints in the country for the production of coins: Mumbai, Maharashtra; Kolkata, West Bengal; Hyderabad, Telangana; Noida, Uttar Pradesh [1] The functions of the mint were replaced by the Security Printing and Minting Corporation of India in 2006.

  4. Gold coin - Wikipedia

    en.wikipedia.org/wiki/Gold_coin

    Gold coins for sale at the Dubai Gold Souk. A gold coin is a coin that is made mostly or entirely of gold.Most gold coins minted since 1800 are 90–92% gold (22karat), while most of today's gold bullion coins are pure gold, such as the Britannia, Canadian Maple Leaf, and American Buffalo.

  5. List of most expensive coins - Wikipedia

    en.wikipedia.org/wiki/List_of_most_expensive_coins

    List of most expensive coins Price Year Type Grade Issuing country Provenance Firm Date of sale $18,900,000 1933 1933 double eagle: MS-65 CAC United States: King Farouk of Egypt: Sotheby's [1] June 8, 2021 $12,000,000 1794 Flowing Hair dollar: SP-66 CAC United States Neil, Carter Private sale [2] January 24, 2013 $9,360,000 1787 Brasher ...

  6. India Government Mint, Kolkata - Wikipedia

    en.wikipedia.org/wiki/India_Government_Mint,_Kolkata

    The India Government Mint, Kolkata was first established in 1757, [2] and was located in a building next to the Black Hole in the old fort – where the GPO (General Post Office) stands today. [3] It was called the Calcutta Mint and used to produce coins with the mint name Murshidabad .

  7. Security Printing and Minting Corporation of India - Wikipedia

    en.wikipedia.org/wiki/Security_Printing_and...

    The Security Printing & Minting Corporation of India Ltd. (SPMCIL) is an organization under the Coin and Currency Division of Department of Economic Affairs, Ministry of Finance. It is responsible for conducting printing and minting activities for the Government of India. It is under the ownership of the Ministry of Finance, Government of India.

  8. Crown gold - Wikipedia

    en.wikipedia.org/wiki/Crown_gold

    Crown gold is a 22 karat (kt) gold alloy used in the crown coin introduced in England in 1526 (by Henry VIII). [1] In this alloy, the proportion of gold is 22 parts out of 24 (91.667% gold). Crown gold is appreciably less prone to wear than the softer 23 kt gold of earlier gold sovereigns — an important point for coins intended for everyday ...

  9. BIS hallmark - Wikipedia

    en.wikipedia.org/wiki/BIS_hallmark

    The BIS Hallmark is a hallmarking system for gold as well as silver jewellery sold in India, certifying the purity of the metal. [1] [2] It certifies that the piece of jewellery conforms to a set of standards laid by the Bureau of Indian Standards, the national standards organization of India. India is the second biggest market for gold and its ...