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A medal is a flat piece of metal with shapes, pictures and letters on its surface. Without denomination, they are not legal tender; therefore they are not officially used as money. However, pictures or..
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In ancient times human beings learned to live in accord with nature; they used things in their surroundings as symbols in order to communicate both within their own community and without. The symbols a..
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Siam first used a coin machine to produce flat standard coins in the reign of King Mongkut or King Rama IV when Queen Victoria presented a small operating minting machine as a state gift to King Rama I..