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The coinage metals comprise those metallic chemical elements and alloys which have been used to mint coins. Historically, most coinage metals are from the three nonradioactive members of group 11 of the periodic table: copper, silver and gold. Copper is usually augmented with tin or other metals to form bronze.
A lump of ancient Vietnamese cash coins in the National Museum of Vietnamese History, Hanoi. The list of coin hoards in Vietnam comprises significant archaeological hoards of coins, other types of coinages (e.g. sycees) or objects related to coins discovered in Vietnam. The history of Vietnamese currency, independent from China, dates back to the Đinh dynasty period with the Thái Bình Hưng ...
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Group 11 is also known as the coinage metals, due to their usage in minting coins [2] —while the rise in metal prices mean that silver and gold are no longer used for circulating currency, remaining in use for bullion, copper remains a common metal in coins to date, either in the form of copper clad coinage or as part of the cupronickel alloy.
The sapèqueries of Đại Nam under Emperor Tự Đức were operated by the Hanoi Office of Current Money (河內通寶局, "Hà-Nội Thông Bảo Cục") which replaced the former Office of Currency (Bảo Tuyền Cục) and the Capital Office of Currency (Bảo Hoá Kinh Cục), and the main sapèqueries were located in Huế while mints were also in operation in Hanoi, Sơn Tây, and ...
The inspiration to introduce the văn may have been to emulate the Chinese wén used on contemporary Qing dynasty cash coins which had just become a fiat currency, however unlike the Chinese system where all Chinese cash coins were cast from the same metals and the wén was the primary unit of account for coins made of the same metals, the ...
Coins were first made of scraps of metal by hitting a hammer positioned over an anvil. The Chinese produced primarily cast coinage, and this spread to South-East Asia and Japan. Although few non-Chinese cast coins were produced by governments, it was a common practice amongst counterfeiters. Electrum coin from Ephesus, 650-625 BC.
The earliest coinage of Asia is also the oldest coinage of the world. [citation needed] Coins were invented several times independently of each other. The earliest coins from the Mediterranean region are from the kingdom of Lydia, and are now dated ca. 600 BCE. The dating of the earliest coins of China and India is difficult and the subject of ...