‘Twin-Coin’ Gold Bars Yoo Long Kim Kee (Thailand) was the first to manufacture a decorative cast bar to a precise weight through injecting gold into an enclosed mould under pressure.

‘Koban’ Gold Bars
Tokuriki Honten (Japan) has manufactured attractive ‘Koban’ bars since the early 1960s, ranging from 5 g to 50 g. The bars  commemorate the oval shape of traditional Japanese gold coinage issued between the 16th and 19th centuries.
‘Twin-Coin’ Gold Bars
Yoo Long Kim Kee (Thailand) was the first to manufacture a decorative cast bar to a precise weight through injecting gold into an enclosed mould under pressure. The Exhibition displays an experimental 1 baht bar, described as a ‘twin-coin’ bar, which was manufactured in 1992.