The Internet Pinball Serial Number Database or IPSND collects serial numbers of pinball machines and publishes a database of these on the Internet. Our goal is to make available a registration of all pinball machines in existence and allow tools for slicing, dicing and visualization of the data.

Games: 6,550  Serials: 60,927  Visitors: 58,379,485  Members: 4,994  Photos: 36,777  Lat/Lng: 31,043  Masks: 60,927(930.18%)  Traits: 556  Nudges: 186,833  Backglasses: 1,865
  Most Serials: Twilight Zone(1,209)  Most Submissions: Dennis Braun(5,687)  Most Points: Dennis Braun(42,298)  Highest Quality: EM-fan(9.45)  Most Nudges: King of Pinball(24,567)
Williams System 4
IPDB:  View at IPDB (External site)
Stats:  MPU used in 4 games.
   
BackglassGameYearManufacturerSerials
Backglass Image Phoenix1978Williams Electronics, Inc. (1967-1985) 50
Backglass Image Flash1978Williams Electronics, Inc. (1967-1985) 180
Backglass Image Pokerino1978Williams Electronics, Inc. (1967-1985) 18
Backglass Image Stellar Wars1979Williams Electronics, Inc. (1967-1985) 42