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: 6,607  Serials: 63,633  Visitors: 63,801,204  Members: 5,221  Photos: 39,318  Lat/Lng: 33,407  Masks: 63,633(963.11%)  Traits: 562  Nudges: 199,670  Backglasses: 1,865
  Most Serials: Twilight Zone(1,226)  Most Submissions: Dennis Braun(5,870)  Most Points: Dennis Braun(43,612)  Highest Quality: EM-fan(9.45)  Most Nudges: King of Pinball(25,711)
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) 185
Backglass Image Pokerino1978Williams Electronics, Inc. (1967-1985) 18
Backglass Image Stellar Wars1979Williams Electronics, Inc. (1967-1985) 44