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: 6,688  Serials: 65,354  Visitors: 66,291,133  Members: 5,355  Photos: 40,986  Lat/Lng: 34,922  Masks: 65,354(977.18%)  Traits: 567  Nudges: 208,053  Backglasses: 1,865
  Most Serials: Twilight Zone(1,246)  Most Submissions: Dennis Braun(6,001)  Most Points: Dennis Braun(44,572)  Highest Quality: EM-fan(9.51)  Most Nudges: pinballservice-nl(26,387)
Williams System 11
IPDB:  View at IPDB (External site)
Stats:  MPU used in 5 games.
   
BackglassGameYearManufacturerSerials
Backglass Image High Speed1986Williams Electronic Games, Inc., a subsidiary of WMS Inc.713
Backglass Image Grand Lizard1986Williams Electronic Games, Inc., a subsidiary of WMS Inc.126
Backglass Image Road Kings1986Williams Electronic Games, Inc., a subsidiary of WMS Inc.163
Backglass Image Sudden Withdrawal1990Williams Electronic Games, Inc., a subsidiary of WMS Inc.0
Backglass Image WPC Test Fixture1991Williams Electronic Games, Inc., a subsidiary of WMS Inc.5