ROMANTICS STEP ASIDE, money makes the world go round (not love comes in second). Financial experts from all over the world are meeting in Chiang Mai at the 33rd Annual Meeting of the Asian Development Bank (ADB). The history of ancient money is fascinating and Thailand can be a coin collector's dream or nightmare, depending on how you look at it. Thai pig-mouth money, bracelet money and bullet coins are unique in world coinage, but the scarcity of old coins makes research and comparisons difficult for the collector.