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: 71,263  Visitors: 83,173,623  Members: 5,828  Photos: 46,628  Lat/Lng: 39,825  Masks: 71,263(1,063.15%)  Traits: 579  Nudges: 236,310  Backglasses: 1,865
  Most Serials: Twilight Zone(1,364)  Most Submissions: Dennis Braun(6,174)  Most Points: Dennis Braun(45,959)  Highest Quality: The Knight(17.00)  Most Nudges: pinballservice-nl(30,398)
Williams System 4
IPDB:  View at IPDB (External site)
Stats:  MPU used in 4 games.
   
BackglassGameYearManufacturerSerials
Backglass Image Phoenix1978Williams Electronics, Inc. (1967-1985) 57
Backglass Image Flash1978Williams Electronics, Inc. (1967-1985) 206
Backglass Image Pokerino1978Williams Electronics, Inc. (1967-1985) 20
Backglass Image Stellar Wars1979Williams Electronics, Inc. (1967-1985) 48