I thought Carta Mundi made the pieces for the movie John?
I have heard that stated on more then one occasion. Here was the quickest link I could find to a site that said this, but I have read it on others as well....I could very well be mistaken, as I am going on the statements I saw online.

http://www.showcasetoys.com/asmadb5dbsfi.html

"This set also includes a Casino Royale poker plaque with the limited edition set number engraved on it by Carta Mundi who produced the actual poker plaques used in the film"