China - Chopmarked Coins. CHOPMARKED COINS: STRAITS SETTLEMENTS: Edward VII, 1901-1910, AR dollar, 1909, KM-26, with two inverted rectangular chopmarks reading yong jin feng, VF. This chopmark combination, possibly made by a Sino-Thai merchant whose chopmarks are also known to be in Thai, is considered by some as a fantasy applied in the mid-20th century.