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: 6,708  Serials: 74,158  Visitors: 92,586,835  Members: 6,010  Photos: 49,455  Lat/Lng: 42,433  Masks: 74,158(1,105.52%)  Traits: 582  Nudges: 250,646  Backglasses: 1,865
  Most Serials: Twilight Zone(1,409)  Most Submissions: Dennis Braun(6,233)  Most Points: Dennis Braun(46,427)  Highest Quality: The Knight(17.00)  Most Nudges: pinballservice-nl(31,484)
Williams System 11A
IPDB:  View at IPDB (External site)
Stats:  MPU used in 6 games.
   
BackglassGameYearManufacturerSerials
Backglass Image PIN·BOT1986Williams Electronic Games, Inc., a subsidiary of WMS Inc.630
Backglass Image Millionaire1987Williams Electronic Games, Inc., a subsidiary of WMS Inc.115
Backglass Image F-14 Tomcat1987Williams Electronic Games, Inc., a subsidiary of WMS Inc.604
Backglass Image PIN·BOT1987Universal de Desarrollos Electronicos, S.A.3
Backglass Image Fire!1987Williams Electronic Games, Inc., a subsidiary of WMS Inc.180
Backglass Image Fire! (Champagne Edition)1987Williams Electronic Games, Inc., a subsidiary of WMS Inc.36