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: 69,628  Visitors: 78,479,735  Members: 5,726  Photos: 45,085  Lat/Lng: 38,445  Masks: 69,628(1,038.76%)  Traits: 572  Nudges: 228,661  Backglasses: 1,865
  Most Serials: Twilight Zone(1,334)  Most Submissions: Dennis Braun(6,144)  Most Points: Dennis Braun(45,740)  Highest Quality: The Knight(17.00)  Most Nudges: pinballservice-nl(29,145)
Williams System 4
IPDB:  View at IPDB (External site)
Stats:  MPU used in 4 games.
   
BackglassGameYearManufacturerSerials
Backglass Image Phoenix1978Williams Electronics, Inc. (1967-1985) 55
Backglass Image Flash1978Williams Electronics, Inc. (1967-1985) 205
Backglass Image Pokerino1978Williams Electronics, Inc. (1967-1985) 19
Backglass Image Stellar Wars1979Williams Electronics, Inc. (1967-1985) 47