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: 78,076  Visitors: 109,897,005  Members: 6,183  Photos: 53,262  Lat/Lng: 43,899  Masks: 78,076(1,162.88%)  Traits: 589  Nudges: 269,832  Backglasses: 1,865
  Most Serials: Twilight Zone(1,507)  Most Submissions: Dennis Braun(6,314)  Most Points: Dennis Braun(47,035)  Highest Quality: The Knight(17.00)  Most Nudges: pinballservice-nl(31,078)
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.673
Backglass Image Harley-Davidson (1st production run)1991Midway Mfg. Co., a subsidiary of WMS Industries, Inc.44
Backglass Image The Machine: Bride of Pin·bot1991Williams Electronic Games, Inc., a subsidiary of WMS Inc.399
Backglass Image Harley-Davidson (2nd production run)1991Midway Mfg. Co., a subsidiary of WMS Industries, Inc.0