La Boîte à Pain - Le forum

I’ve been collecting coins from different countries for a while, and now I’m interested in finding out which Thai coins are the rarest. I know older coins tend to be more valuable, but are there specific years or types that are particularly hard to find? I’d love to get my hands on something rare, but I don’t want to waste money on common pieces that aren’t worth much. Where’s the best place to research these coins and their real market value?