... table at an antique show, she mentioned that the litho was well-known in its time; by a noted artist. Since, I've searched a few of the art/poster sights and have not found anything.

Also, Al Rollins once told us at an ANA Convention that the chips were from Puerto Rico (w/o attribution).

The closest possible attribution I've ever seen were the incused examples Doug Saito had years ago.

I'v always liked that litho....

John