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: 6,117  Serials: 43,380  Visitors: 20,556,076  Members: 4,143  Photos: 20,940  Lat/Lng: 21,311  Masks: 3,150(51.50 %)  Traits: 465  Nudges: 106,731  Backglasses: 1,848
  Most Serials: Twilight Zone(919)  Most Submissions: Rod McLarge(2,916)  Most Points: Rod McLarge(24,949)  Highest Quality: EM-fan(9.24)  Most Nudges: King of Pinball(14,210)
Count-Down - IPSND/IPDB No. 573 - April 1979
Backglass Image
Manufacturer: D. Gottlieb & Co., a Columbia Pictures Industries Company
Players: 4
MPU: Gottlieb System 1
Production Run: 9,900
Game Type: Solid State Electronic (SS)
Model: 422
Submissions: 81 serials of 9,900 (0.82 %)
Coverage help:

Coverage is a mathematical interpretation of the serial numbers that have been submitted so far. The term 'coverage' relates to the amount of the production run that has been 'covered' in the given submissions.

There are two coverage methods shown, each has a different approach of calculating an guess on the number of games produced by analysing the currently submitted serial numbers.

Linear: Linear coverage simply looks at the highest serial number and subtracts from it the smallest serial number to estimate the number of games produced. For some games, this works fine because the serial numbers were sequential and without gaps (Early Bally, Early Stern, etc). However, this approach starts to fail quickly for games that serial numbers are part of a bigger numbering scheme (Williams pre 1984, Current Stern) or that intentially had gaps/skips in the numbering sequence(Gottlieb post 1960). If you see a linear coverage number that is higher than the known production run, it is probably not the best way to look at the serial range and you should look at the clustered approach below.

Clustered: Clustered coverage assumes that there are gaps/skips in the serial sequence for a game. It groups the serial numbers together based upon how close they are to the next serial number in the sequence. If they fall within a certain threshold then the SerialBot assumes that there are valid serial numbers between the two. If they are far enough apart, then the SerialBot assumes this is a gap. Once all the gaps and groups are determined, it sums up all the linear ranges in each group. This way, if a sample run of games started at 15,000-15,100 and the production games started at 17,000 onwards, it would assume that the serial numbers between 15,100-17,000 were a gap an are not counted. Using this method, as more serial numbers are submitted the gap analysis will get more accurate.

10,783 (108.92 %) linear / 5,652(57.09 %) in 7 clusters 495 wide.
Singapore: 1 _serials Hungary: 1 _serials United Kingdom: 1 _serials Netherlands: 1 _serials Sweden: 2 _serials Finland: 5 _serials Canada: 6 _serials United States: 71 _serials United States: 71 _serials Singapore: 1 _serials Hungary: 1 _serials United Kingdom: 1 _serials Netherlands: 1 _serials Sweden: 2 _serials Finland: 5 _serials United States: 71 _serials
Parts: 3 _serials Unknown: 8 _serials Complete: 77 _serials Complete: 77 _serials Parts: 3 _serials Unknown: 8 _serials Complete: 77 _serials
Complete Game: 46 _serials Other Parts: 42 _serials Complete Game: 46 _serials Other Parts: 42 _serials
Cluster Serial Number SerialBot Submitted By Country Game Part

Submit a new Game Trait

The following traits help

Game Traits are properties for an individual game that you would like to see tracked along with the other information gathered for a serial number submission. Some examples of existing traits are... Joust: Black or Blue bottom Arch, Black Knight: Faceted Inserts or Normal Inserts, Twilight Zone: 3rd Magnet Installed or not.

have been submitted for this game...

Field NameDescriptonSubmitted BySubmit DateSubmitted
Shooter Lane Stripe At least one sample playfield has a black stripe in the shooter lane that extends onto the playfield along the upper arch. On this playfield, there are no areas of unpainted wood. For instance, the shooter lane is fully painted, as are the oval areas around each rollover, the flipper area, and under the light shields. Indicate if your playfield is has the black stripe or not. If your playfield is known after-factory reproduction, select Replacement. Jay St@fford1/7/201511
Playfield composition At least one sample playfield is made of pressboard or fiberboard, not plywood. Indicate if your playfield is fiberboard or is plywood. If your playfield is known after-factory replacement, select Replacement. Jay St@fford1/7/20158

Cluster Serial Number Country

This section lists any known game part serials that happen to match this game's serial mask (if defined). What this can tell you is if a game has any orphaned parts that might exist in other machines. This generally applies to CPU/MPU boards, Driver Boards, Display boards etc that are easily moved from game to game. Repair shops and distributors often robbed parts from other 'scrap' games laying around in a pinch if they were not able to fix the original part or of the original part was damaged beyond repair. If serials start showing up in the database as 'game parts', there is potentially a good chance that that game has been parted out completely, which is unfortunate. It is becoming more and more common for people to part out games and sell them on ebay simply because the seller can often make more money that way.... Please do not sacrifice complete games for money!!!

SerialBotSerial NumberTypeSubmitted ByCountryDetails
35314 01022 Jay St@fford United States flag United States
35998 02024F Display/Driver Adam United States flag United States
35994 02024F MPU/CPU Adam United States flag United States
43247 02171F Solenoid Driver Rod McLarge United States flag United States
34122 02191 Other/Unknown Adam United States flag United States
43246 02311F MPU/CPU Rod McLarge United States flag United States
35629 02332F Display/Driver Rod McLarge United States flag United States
36240 02368F Display/Driver Adam United States flag United States
36180 02520F MPU/CPU Adam United States flag United States
27721 02553F MPU/CPU Pistol Pete United States flag United States
48690 02744F Display/Driver Rod McLarge United States flag United States
37657 02814F Power Supply Rod McLarge United States flag United States
34291 02825F Display/Driver Rod McLarge United States flag United States
45951 02846F MPU/CPU Rod McLarge United States flag United States
24168 03017F Power Supply John Vorwerk United States flag United States
43757 04125F Display/Driver Rod McLarge United States flag United States
33000 04500F Display/Driver Rod McLarge United States flag United States
42884 06492F Power Supply Rod McLarge United States flag United States
36070 07294F MPU/CPU Adam United States flag United States
17372 07504F MPU/CPU John Vorwerk United States flag United States
11873 07651 MPU/CPU Jess Askey United States flag United States
23882 07651F Display/Driver John Vorwerk United States flag United States
45967 07656F MPU/CPU Rod McLarge United States flag United States
34322 07706F Display/Driver Rod McLarge United States flag United States
42924 08238F MPU/CPU Rod McLarge United States flag United States
42809 09516F Solenoid Driver Rod McLarge United States flag United States
42805 09575F MPU/CPU Rod McLarge United States flag United States
42839 09778F Display/Driver Rod McLarge United States flag United States
29330 09883F Display/Driver Pat Herbert United States flag United States
42836 09928F Solenoid Driver Rod McLarge United States flag United States
41720 10073F Display/Driver Antti Peltonen Hungary flag Hungary
20710 10171F MPU/CPU John Vorwerk United States flag United States
34341 10259F MPU/CPU Rod McLarge Canada flag Canada
42736 10260F Power Supply Rod McLarge Canada flag Canada
36512 10498F Display/Driver Rod McLarge United States flag United States
35701 10872F Display/Driver Antti Peltonen Finland flag Finland
26866 10872F MPU/CPU Antti Peltonen Finland flag Finland
14836 10912F Display/Driver HEI Sweden flag Sweden
14840 10927F Power Supply HEI Sweden flag Sweden
42951 11084F Display/Driver Adam United States flag United States
42914 8238F MPU/CPU John Vorwerk United States flag United States
35441 F1369 Display/Driver Adam United States flag United States

This section lists any known information about how to physically find serial numbers on games created by this manufacturer. For all manufacturer tips, please visit the Serial Tips Page . (Please do not post serial numbers here on this form.)

Posted 10/2/2008 2:04:32 AM by Mal Voisin
Serial found stamped in ink on top of head.
Posted 6/12/2009 5:25:53 PM by Larry Tuma
Serial number in lower cabinet on right side on top of 1st stiffener. Also on right top inside near ball shooter
Posted 9/17/2010 2:38:21 AM by Max Bowman
Stamped in upper left of cabinet on front panel above coin door. In timber. This is between the coin door and removable steel strip that holds the glass in.
Posted 6/5/2012 10:47:57 PM by Frederic ROBIN
Serial found inside cabinet nearby front door, stamped.
Members can submit new tips on how to find serial numbers! Sign up for a free membership here!

This game has the following serial number formats defined in the database. As serial numbers are sumbitted, trends are recognized and defined or information about a serial number format is collected through historical information.

TypeExamplesRegExMaskLowerLimitUpperLimitAutoAssignable
Production Game 02226, 02882 ^(?<sortdata>[0-9][0-9][0-9][0-9][0-9])$ 1000 False
Sample Game 01023S, 01184S ^(?<sortdata>0[0-9][0-9][0-9][0-9])(S?)$ 1000 1999 False
Game PCB 02226F, 02882F ^(F?)(?<sortdata>([0-1]?)[0-9][0-9][0-9][0-9])(F?)$ 999 False


The Serial Bot Summary information here gives a detailed explanation of the Serial Bot analysis for this specific game. The theory behind the Serial Bot is this...

Every game has many many serial number submissions, the goal of the IPSND is not to guarantee that *all* information is 100% correct but that over time, the system should automatically devalue inaccurate submissions while increasing the value of correct submissions.

You may click on the SerialBot score of any submission to see how it was calculated.

SerialBot Color Codes:
- Not Validated The serial number submission has not yet been validated by the submitter via email.
- Unknown There is no known information on the serial number format for this game yet. As more submissions are received we can start to make a best guess on the serial number format.
- Good If a serial does not fail any of the tests for a status of Warning or Bad, then it is good.
- Suspect A serial will have a suspect status if the format is technically correct but there is something wrong with the data. Examples might be that the number might be too high or low for the known range of serials for this game.
- Bad If a game has a serial number definition mask defined for it, then a serial may be marked as 'bad' if the number does not validate agains the mask. Masks are created for games by looking at known serial number formats and consist of a regular expression to define the format of a game serial.

SerialBot Scores:
1 Point Awarded if the serial number has a game assigned to it. This autoatically makes submissions with a known game more valuable than submissions without a known game.
1 Point Awarded if the serial number has been 'verified' by the submitter. A submission is 'verifed' if the submitter clicks on the link in the email sent to them for each submission. The basis for this rule is that submissions by people that do not take the time to respond to the email might be entering garbage data and/or giving fake email addresses. However, it is common for 'verification' emails to get stuck in spam filters etc, so, members may have 'verification' emails re-sent at any time.
1 Point Awarded if the submitted serial number matches one of the predefined serial number masks for this game.
1 Point Awarded if the serial number was marked as 'Physically Viewed' during the submission process. This is an interesting distinction as there are many times that serial numbers are submitted off owners lists, Ebay auction, etc. While these serial numbers are valuable, they may also be innacurate. In comparison, Physically Viewed serial number submissions are numbers that the submitter has actually been in front of the machine reading the number and then submitting it. Since it is more likely to get a good visual from a physically viewed machine, this gains an extra point.
1 Point If a photo is uploaded with the serial number submission. The submission automatically gains an additional point. Be aware however that this opens the submission up to 'Nudges' by members where even more points can be added or subtracted based upon the quality and accuracy of the photo.
-3 to +3 Points Members can 'Nudge' every sumitted photo once and give it an extra boost of 1 point or take away 1 point depending if the photo matches the submitted serial number. While any number of members may nudge a serial, the nudging can only affect the score by +/- 3 points in either direction.

The following map shows the locations of all serial numbers that were submitted with a geolocation... (click here if map does not show)

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