I'm not sure if the name is "Lord Buddha", I can't find much info about it but I seem to find a series of "Kingdom of Bhutan" coins when I google. This coin is 20gr fine gold 999,9 and certificate states the series only consists of 2999 pcs. Is it a rare coin since the mintage is low? Estimates on value? I really can't find anything about it.
Looks like they were minted in Germany, but doesn't mention the 20g? http://www.mayermint.com/MayermintShop/NumismaticsShop/LordBuddha/Enlightenment.asp
Here is a link to the 3000 Ngultrum http://www.mcsearch.info/search.html?search=bhutan+2003&view_mode=1&sort=&c=&a=&l=#0
I don't have it, but I've been offered it for spot. Just not sure if it's genuine or too unknown to resell.