The information is correct. Different villages produced these for games in the area of what is then known as Siam. They are available in Hong Kong and originals are hard to tell from reproductions. I have two books accumulated over 20 years of 400 different ones and everytime Dale and I get together, we discuss new finds and fakes. Seems both are equally in demand since no no one seems to care much and cannot tell the difference. Most sell for $4 to $20. Seldom find many dupllicates and the translation of Asian Characters differ even amoung Asians. To an American - Asian.......its all the same to me. Mel