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: 6,447  Serials: 56,322  Visitors: 44,667,456  Members: 4,434  Photos: 32,696  Lat/Lng: 27,930  Masks: 56,322(873.62 %)  Traits: 544  Nudges: 166,149  Backglasses: 1,865
  Most Serials: Twilight Zone(1,145)  Most Submissions: Dennis Braun(4,941)  Most Points: Dennis Braun(36,853)  Highest Quality: EM-fan(9.54)  Most Nudges: King of Pinball(21,967)
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.498
Backglass Image PIN·BOT1987Universal de Desarrollos Electronicos, S.A.1
Backglass Image Millionaire1987Williams Electronic Games, Inc., a subsidiary of WMS Inc.93
Backglass Image F-14 Tomcat1987Williams Electronic Games, Inc., a subsidiary of WMS Inc.489
Backglass Image Fire!1987Williams Electronic Games, Inc., a subsidiary of WMS Inc.138
Backglass Image Fire! (Champagne Edition)1987Williams Electronic Games, Inc., a subsidiary of WMS Inc.32