The Add-a-ball version of this game is Williams' 1971 'Yukon'. The 4-player version of this game is Williams' 1971 'Jackpot'. The flippers on 'Klondike' were placed a few inches below the slingshots, as was done five months previously on Williams' 1971 'Doodle Bug', but this time Williams closed the gaps by adding posts. Reportedly, an unknown quantity of this game left the factory with the wiring incorrect on the right playfield score reel as compared to the schematic. Two wires were crossed which caused incorrect scoring on some score reel combinations. Production Floor Records for Klondike: Production Start Date: Prior to Jul-7-1971 Production End Date: Oct-6-1971 Production Floor Quantity: 3302 First ship date: Prior to Jul-7-1971 Last ship date: Oct-13-1971 Product History Record for Klondike: Quantity produced for USA/Canada: 2182* Quantity produced for export: 927* Total quantity produced: 3109* Price to Distributor: $440.00 *These quantities may be sales estimates.