The coin behind door seventeen is the Chinese Empire 1 Cash Coin.
Chinese coinage history can be traced back over two-thousand years because China was one of the first countries to use metal coinage.
Because money represents power, the Chinese also produced coin-like charms to display this power, which were used to symbolise good luck and fortune, and to suppress evil spirits.
These Chinese cash coins have a unique shape with a hole in the middle, which makes them stand out from typical modern coinage. This feature was originally intended so that people could easily string them together for easy carrying. Now they are used more for their lucky charm, and are often worn as a necklace by children for good luck, or over someone’s sick bed for good health.