The Vess Mystery Puzzle is a 9-piece edge-matching puzzle, advertising Vess Billion Bubble Beverages, from the Whistle & Vess Beverages company in St. Louis Missouri.  The puzzle is pre-zip code, making it 60+ years old (and likely from the 1950's)!  As seen in the photo, the nine square cards are completely unseparated and in mint condition, and the envelopes are in excellent condition, as well.  THE WINNING BIDDER WILL RECEIVE TWO COPIES OF THE PUZZLE --- one to keep intact for collecting p...