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: 6,416  Serials: 55,812  Visitors: 42,938,226  Members: 4,320  Photos: 32,233  Lat/Lng: 27,577  Masks: 55,812(869.89 %)  Traits: 540  Nudges: 163,772  Backglasses: 1,865
  Most Serials: Twilight Zone(1,141)  Most Submissions: Dennis Braun(4,821)  Most Points: Dennis Braun(35,884)  Highest Quality: EM-fan(9.54)  Most Nudges: King of Pinball(21,603)
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) 22
Backglass Image Disco Fever1978Williams Electronics, Inc. (1967-1985) 44