rwcarter
Does the top of your box say US Games or Samuel Weiser? The Weiser deck has a US Games LWB. The only LWBs I've seen without copyrights have been with Weiser decks, which I believe to be the first printing of the yellow box.
You should check out RWS Deck Post-1970 Publishing History.
You should check out RWS Deck Post-1970 Publishing History.