Just got back from the Petaluma Street Fair and ran into the guy with the Double O chips .He got them at a storage locker sale along with several other kinds of chips . I haven't researched the other chips yet but I think they are California Card Club chips . He was very happy with his OO sales and said that he had gotten about 50 OO chips in the lot. I went through the box and found a couple of more OO chips he hadn't seen .