David C Rockola's Design Patent for Worlds Fair. This design patent shows the name on the game as Worlds Fair but was actually called Jigsaw when the games were produced. Rock-Ola Manufacturing Corporation of Chicago produced a winner in its August 1933 production of Jigsaw. The game rewarded its players for well aimed shots. With ten balls the player is challenged to shoot for the right holes that push long piano wires that flip- up parts of a colorful jig saw puzzle picture of the Chicago "Century of Progress" World's Fair of 1933. Most good players can do it with just 5 or 6 balls. they built just over 70,000 games and its reported that only around 125 games have survied all these years. This set contains 2 documents as shown in the photos. Please note that resoloution of these pictures has been optimized for fast picture loading here on Shopify. The actual files are as sharp as the original document permits. This is an excellent quality reproduction of an original patent in high resolution taken directly from US Patent Office archives. This reproduction was digitally restored and in some cases altered to remove defects or unwanted artifacts present in the original patent document. The artwork is printed in black and white on premium acid free, lignin-free archival 24lb/90g/m 8 1/2" by 11" Magna Carta parchment paper for that historical look and is ready to frame. This replicates the authentic and original feel of the patent document. Please note that the images shown are displayed on a white background for clarity instead of the natural color of the parchment paper. These patents make great conversational pieces and look fabulous framed in lobbies or waiting rooms as decorative wall art. Other great uses for these patents are: game rooms, dorm rooms, restaurants, bars, or cottages. They also make great gifts for those people who are difficult to buy for. Most people have an interest or hobby that can relate to a specific patent. Check out our other patents in our Shopify Store.