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: 69,008  Visitors: 75,906,119  Members: 5,665  Photos: 44,504  Lat/Lng: 37,942  Masks: 69,008(1,029.51%)  Traits: 574  Nudges: 225,742  Backglasses: 1,865
  Most Serials: Twilight Zone(1,322)  Most Submissions: Dennis Braun(6,127)  Most Points: Dennis Braun(45,613)  Highest Quality: The Knight(17.00)  Most Nudges: pinballservice-nl(28,699)
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.593
Backglass Image Millionaire1987Williams Electronic Games, Inc., a subsidiary of WMS Inc.105
Backglass Image F-14 Tomcat1987Williams Electronic Games, Inc., a subsidiary of WMS Inc.570
Backglass Image PIN·BOT1987Universal de Desarrollos Electronicos, S.A.2
Backglass Image Fire!1987Williams Electronic Games, Inc., a subsidiary of WMS Inc.170
Backglass Image Fire! (Champagne Edition)1987Williams Electronic Games, Inc., a subsidiary of WMS Inc.34