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Zamak 3 is the de facto standard for the zamak series of zinc alloys; all other zinc alloys are compared to this. Zamak 3 has the base composition for the zamak alloys (96% zinc, 4% aluminum). It has excellent castability and long term dimensional stability. More than 70% of all North American zinc die castings are made from zamak 3. [2]
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.
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.
The Jewels of the Nizams of Hyderabad State are among the largest and most expensive collection of jewels in present-day India. [1] The jewels belonged to the Nizams , rulers of Hyderabad State. After the annexation of their kingdom by Union of India , the Nizam and his heirs were barred by the Indian government from taking the collection ...
The Indian 2-rupee coin is a denomination of the Indian rupee. The 2 rupee coin was introduced in India in 1982. Until then, the Rs.2 was in circulation in banknotes. The old Rs.2 coin was minted with cupro-nickel metal. The new Rs.2 coin was minted in ferritic stainless steel.
The Indian 10-rupee coin (₹ 10) is a denomination of the Indian rupee. The ₹10 coin is the second highest-denomination coin minted in India since its introduction in 2005. The present ₹10 coin in circulation is from the 2019 design. However, the previous ₹10 coins minted before 2019 are also legal tender in India.
An anna (or ānna) was a currency unit formerly used in British India, equal to 1 ⁄ 16 of a rupee. [1] It was subdivided into four pices or twelve pies (thus there were 192 pies in a rupee). When the rupee was decimalised and subdivided into 100 (new) paise , one anna was therefore equivalent to 6.25 paise .
The new 20 rupee coin is a circle (it is 12 edged*) with a diameter of 27mm (millimeters) and weight of 8.54 grams. The outer ring is composed of 65% copper, 15% zinc and 20% nickel whereas the inner ring (centre piece) is composed of 75% copper, 20% zinc and 5% nickel. Designed with the help of students of National Institute of Design ...