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: 70,724  Visitors: 81,952,455  Members: 5,801  Photos: 46,105  Lat/Lng: 39,342  Masks: 70,724(1,055.11%)  Traits: 578  Nudges: 233,789  Backglasses: 1,865
  Most Serials: Twilight Zone(1,354)  Most Submissions: Dennis Braun(6,159)  Most Points: Dennis Braun(45,854)  Highest Quality: The Knight(17.00)  Most Nudges: pinballservice-nl(30,010)
Williams System 9
IPDB:  View at IPDB (External site)
Stats:  MPU used in 3 games.
   
BackglassGameYearManufacturerSerials
Backglass Image Space Shuttle1984Williams Electronics, Inc. (1967-1985) 284
Backglass Image Sorcerer1985Williams Electronics, Inc. (1967-1985) 174
Backglass Image Comet1985Williams Electronic Games, Inc., a subsidiary of WMS Inc.269