From: utzoo!decvax!pur-ee!uiucdcs!barnes
Newsgroups: net.games
Title: Re: McDonalds game query - (nf)
Article-I.D.: uiucdcs.688
Posted: Tue Sep  7 18:26:01 1982
Received: Thu Sep  9 03:26:57 1982

#R:eagle:-50000:uiucdcs:9200002:000:185
uiucdcs!barnes    Sep  7 18:02:00 1982

Considering that that silver scratch-off paint is universally
used for all sorts of cards (lotteries, Macs, etc) I don't think
there is a simple method.  If someone has, let him speak!