A while back I bookmarked this about the Truman chips -- nice pictures and long article. I don't remember what was said and didn't bother to reread it now, but you people might like it. All about Trman's poker playing, beating Churchill at poker, etc.:
http://www.archives.gov/publications/prologue/2003/spring/truman-poker.html

T R KIng chips, it looks like: