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: 6,703  Serials: 71,094  Visitors: 82,772,493  Members: 5,816  Photos: 46,461  Lat/Lng: 39,673  Masks: 71,094(1,060.63%)  Traits: 579  Nudges: 235,583  Backglasses: 1,865
  Most Serials: Twilight Zone(1,358)  Most Submissions: Dennis Braun(6,172)  Most Points: Dennis Braun(45,952)  Highest Quality: The Knight(17.00)  Most Nudges: pinballservice-nl(30,302)
Williams System 4
IPDB:  View at IPDB (External site)
Stats:  MPU used in 4 games.
   
BackglassGameYearManufacturerSerials
Backglass Image Phoenix1978Williams Electronics, Inc. (1967-1985) 57
Backglass Image Flash1978Williams Electronics, Inc. (1967-1985) 206
Backglass Image Pokerino1978Williams Electronics, Inc. (1967-1985) 19
Backglass Image Stellar Wars1979Williams Electronics, Inc. (1967-1985) 48