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: 6,473  Serials: 57,852  Visitors: 49,602,153  Members: 4,649  Photos: 34,021  Lat/Lng: 28,895  Masks: 57,852(893.74 %)  Traits: 549  Nudges: 172,847  Backglasses: 1,865
  Most Serials: Twilight Zone(1,162)  Most Submissions: Dennis Braun(5,206)  Most Points: Dennis Braun(38,686)  Highest Quality: EM-fan(9.48)  Most Nudges: King of Pinball(22,966)
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) 44
Backglass Image Contact1978Williams Electronics, Inc. (1967-1985) 24
Backglass Image Disco Fever1978Williams Electronics, Inc. (1967-1985) 44