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: 6,489  Serials: 58,042  Visitors: 51,989,230  Members: 4,676  Photos: 34,187  Lat/Lng: 29,001  Masks: 58,042(894.47 %)  Traits: 550  Nudges: 175,032  Backglasses: 1,865
  Most Serials: Twilight Zone(1,164)  Most Submissions: Dennis Braun(5,237)  Most Points: Dennis Braun(38,917)  Highest Quality: EM-fan(9.48)  Most Nudges: King of Pinball(23,083)
Williams System 3
IPDB:  View at IPDB (External site)
Stats:  MPU used in 5 games.
   
BackglassGameYearManufacturerSerials
Backglass Image Hot Tip1977Williams Electronics, Inc. (1967-1985) 24
Backglass Image Lucky Seven1978Williams Electronics, Inc. (1967-1985) 23
Backglass Image World Cup1978Williams Electronics, Inc. (1967-1985) 46
Backglass Image Contact1978Williams Electronics, Inc. (1967-1985) 24
Backglass Image Disco Fever1978Williams Electronics, Inc. (1967-1985) 44