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: 73,234  Visitors: 89,223,581  Members: 5,954  Photos: 48,550  Lat/Lng: 41,584  Masks: 73,234(1,091.74%)  Traits: 579  Nudges: 246,122  Backglasses: 1,865
  Most Serials: Twilight Zone(1,393)  Most Submissions: Dennis Braun(6,225)  Most Points: Dennis Braun(46,363)  Highest Quality: The Knight(17.00)  Most Nudges: pinballservice-nl(31,890)
Williams WPC (Alpha Numeric)
IPDB:  View at IPDB (External site)
Stats:  MPU used in 4 games.
   
BackglassGameYearManufacturerSerials
Backglass Image Funhouse1990Williams Electronic Games, Inc., a subsidiary of WMS Inc.598
Backglass Image Harley-Davidson (1st production run)1991Midway Mfg. Co., a subsidiary of WMS Industries, Inc.42
Backglass Image The Machine: Bride of Pin·bot1991Williams Electronic Games, Inc., a subsidiary of WMS Inc.361
Backglass Image Harley-Davidson (2nd production run)1991Midway Mfg. Co., a subsidiary of WMS Industries, Inc.0