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: 6,714  Serials: 75,139  Visitors: 96,910,077  Members: 6,054  Photos: 50,404  Lat/Lng: 43,073  Masks: 75,139(1,119.14%)  Traits: 590  Nudges: 255,420  Backglasses: 1,865
  Most Serials: Twilight Zone(1,429)  Most Submissions: Dennis Braun(6,259)  Most Points: Dennis Braun(46,613)  Highest Quality: The Knight(17.00)  Most Nudges: pinballservice-nl(31,084)
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.622
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.368
Backglass Image Harley-Davidson (2nd production run)1991Midway Mfg. Co., a subsidiary of WMS Industries, Inc.0