How do vending machines distinguish coins?
Although it was born in the early 19th century, but you really knowDiscover thousands of 3,000-year-old gold rolls in Denmark
About 2,000 spiral-shaped golden strands, dating from around 700-900 BC, were discovered in Denmark.11 beautiful souvenir coins in the world
America, Brazil, China, Thailand ... also released souvenirs. The face value of money to celebrate this even up to 1 billion USD.