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: 6,703  Serials: 68,831  Visitors: 75,331,554  Members: 5,651  Photos: 44,342  Lat/Lng: 37,803  Masks: 68,831(1,026.87%)  Traits: 573  Nudges: 224,925  Backglasses: 1,865
  Most Serials: Twilight Zone(1,315)  Most Submissions: Dennis Braun(6,118)  Most Points: Dennis Braun(45,539)  Highest Quality: The Knight(17.00)  Most Nudges: pinballservice-nl(28,582)
Williams System 9
IPDB:  View at IPDB (External site)
Stats:  MPU used in 3 games.
Backglass Image Space Shuttle1984Williams Electronics, Inc. (1967-1985) 282
Backglass Image Sorcerer1985Williams Electronics, Inc. (1967-1985) 171
Backglass Image Comet1985Williams Electronic Games, Inc., a subsidiary of WMS Inc.263