Pinball Machine Themes Prospecting History Tools Parent themes: Western Games (9) Nudge-It Gottlieb, 1990 Prospector Sonic, 1977 Jackpot BEM, 1976 Gold Rush Williams, 1971 Jackpot Williams, 1971 Gold Mine Marvel, 1948 Gold Mine Marvel, 1948 Gold Rush Keeney Prospector Bally