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: 73,058  Visitors: 88,724,100  Members: 5,949  Photos: 48,378  Lat/Lng: 41,414  Masks: 73,058(1,089.12%)  Traits: 578  Nudges: 245,073  Backglasses: 1,865
  Most Serials: Twilight Zone(1,392)  Most Submissions: Dennis Braun(6,221)  Most Points: Dennis Braun(46,330)  Highest Quality: The Knight(17.00)  Most Nudges: pinballservice-nl(31,836)
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.597
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.360
Backglass Image Harley-Davidson (2nd production run)1991Midway Mfg. Co., a subsidiary of WMS Industries, Inc.0