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: 6,643  Serials: 63,748  Visitors: 63,962,873  Members: 5,235  Photos: 39,424  Lat/Lng: 33,504  Masks: 63,748(959.63%)  Traits: 564  Nudges: 200,197  Backglasses: 1,865
  Most Serials: Twilight Zone(1,227)  Most Submissions: Dennis Braun(5,875)  Most Points: Dennis Braun(43,628)  Highest Quality: EM-fan(9.51)  Most Nudges: King of Pinball(25,750)
SerialBot Score:
Assigned Game:  +1
Matches Mask:  +1
Trait Data:  0
Verified:  +1
Has Photo:  +1
Physically Viewed:  +1
Nudge Total:  +3
Total Score:

Submission Certificate
Game: Contact
Serial Number: 334701
Submitted By: Pistol Pete
Submit Date: 3/8/2015
Game Part: Other Parts
Country: United States
Comment: Owner information on file. How many digits are in a Williams System 3 serial number? Six, not nine. The prefix 478 is a warranty expiration date code. It is not sequential and it is not part of the sequential serial number. Refer to other game part serials from the System 3-6 era and you will see that later labels actually mark the prefix as the warranty expiration date. As Williams progressed into System 6 and 7 they removed the prefix and instead listed the warranty date code on a separate label.
SerialBot Says: Serial number matches format of a Production Game
Members can nudge SerialBot scores!!
Submitted Photo:
(hover for zoom window)
This Submission:   Others:
Submitted Location:
Other Submissions for this Serial Number:
SerialBotSubmittedSubmitted ByCountryGame PartConditionDetails
There are no other submissions of this serial number for this game.

Nudge History:

Nudging allows IPSND members to adjust the SerialBot score for a submission with a photo attached by determining of the photo clearly shows the existence of the serial number submitted. However, nudging is only 'Open' until there is a clear determiniation of accuracy by members. If a serial number has more than 5 nudges and the total of those nudges is greater than 4 or less than -3, then the nudge will be closed automatically after the last nudge. If a submission is controversial and there are nudges in both the positive and negative direction, then the nudge will remain open until the balance of voting swings the point value beyond 3 (positive or negative).

Nudging Closed On: 3/8/2015 8:46:57 PM
DateNudged ByNudgeComment
3/8/2015Jay St@fford-1I see 478334701 stamped in black ink.
3/8/2015 pinballservice-nl1Thanks for the explanation
3/8/2015King of Pinball1 
3/8/2015Matías N. Brusa1478334701