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: 6,696  Serials: 68,299  Visitors: 74,157,826  Members: 5,620  Photos: 43,827  Lat/Lng: 37,400  Masks: 68,299(1,020.00%)  Traits: 572  Nudges: 222,337  Backglasses: 1,865
  Most Serials: Twilight Zone(1,305)  Most Submissions: Dennis Braun(6,100)  Most Points: Dennis Braun(45,409)  Highest Quality: The Knight(17.00)  Most Nudges: pinballservice-nl(28,209)
Doctor Who - IPSND/IPDB No. 738 - September 1992
Backglass Image
Manufacturer: Midway Mfg. Co., a subsidiary of WMS Industries, Inc.
Players: 4
MPU: Williams WPC (Fliptronics 2)
Production Run: 7,752
Game Type: Solid State Electronic (SS)
Model: 20006
Submissions: 319 serials of 7,752 (4.12%)
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.

863,625 (11,140.67%) linear / 20,175(260.26%) in 98 clusters 387 wide.
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
Dalek Head on Backbox Some Dr. Who games had a motorized Dalek head on the top of the backbox that moved with gameplay. Others had a dalek head but it was not motorized. 12/28/15 added a third choice to account for an after-factory kit, retrofitting a Motorized Dalek Head onto games that had factory Stationary Heads. Jess Askey4/27/2008127
Right Ramp Decal Using the picture provided here, identify if the right upper ramp on your playfield has a decal showing one red arrow (shaped like a shark's fin) or is showing two yellow arrows. If your decal, ramp, or playfield has been replaced, select Replacement.(Valid Values: 1 red arrow,2 yellow arrows,Replacement)
Jay St@fford2/26/202229

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
58222 20006060047 Display/Driver Dennis Braun United States flag United States
32813 20006060102 Display/Driver Rod McLarge Canada flag Canada
35542 20006060127 Display/Driver Rod McLarge United States flag United States
75754 20006060177 Display/Driver Dennis Braun United States flag United States
59434 20006060488 Sound Board Dennis Braun United States flag United States
31732 20006060493 Display/Driver Rod McLarge United States flag United States
70982 20006060498 Solenoid Driver Pepsi Pepsi United States flag United States
70971 20006060498 Solenoid Driver Pepsi Pepsi United States flag United States
70970 20006060498 Solenoid Driver Pepsi Pepsi United States flag United States
70969 20006060498 Solenoid Driver Pepsi Pepsi United States flag United States
70968 20006060498 Solenoid Driver Pepsi Pepsi United States flag United States
70967 20006060498 Solenoid Driver Pepsi Pepsi United States flag United States
70966 20006060498 Solenoid Driver Pepsi Pepsi United States flag United States
70965 20006060498 Solenoid Driver Pepsi Pepsi United States flag United States
70964 20006060498 Solenoid Driver Pepsi Pepsi United States flag United States
70963 20006060498 Solenoid Driver Pepsi Pepsi United States flag United States
70962 20006060498 Solenoid Driver Pepsi Pepsi United States flag United States
52204 20006060527 Coin Door Dennis Braun United States flag United States
49136 20006060603 Solenoid Driver Dennis Braun United States flag United States
56242 20006060680 Coin Door Dennis Braun United States flag United States
61597 20006060866 Sound Board Fun House Italy flag Italy
59373 20006060990 Other/Unknown Fun House United States flag United States
75151 20006061023 Display/Driver Fun House United States flag United States
35944 20006061078 Solenoid Driver Pistol Pete United States flag United States
48821 20006061297 Power Supply Rod McLarge United States flag United States
47976 20006061297 Other/Unknown Dennis Braun United States flag United States
63869 20006I065067 MPU/CPU Dennis Braun United States flag United States
59216 20006I065316 Display/Driver Fun House United States flag United States
53205 20006I065404 MPU/CPU Fun House Spain flag Spain
79078 20006I065512 Display/Driver Fun House United States flag United States
67272 20006I065814 Solenoid Driver Clive Pedersen United Kingdom flag United Kingdom
60457 20006I066000 Display/Driver Fun House Italy flag Italy
69715 20006I066017 Solenoid Driver Dennis Braun United States flag United States
66616 20006I066114 Display/Driver Fun House Italy flag Italy
70098 20006I066259 MPU/CPU Clive Pedersen Italy flag Italy
68547 20106630240 Flipper Board Dennis Braun United States flag United States
68199 20106664010 Display/Driver Fun House United States flag United States
66569 20106700670 Coin Door Dennis Braun United States flag United States
58666 20106701190 Display/Driver Fun House Netherlands flag Netherlands
57468 20106701310 Sound Board Dennis Braun United States flag United States
60807 20106706040 MPU/CPU Dennis Braun United States flag United States
62121 20106708210 MPU/CPU Fun House United States flag United States
56260 20106709490 MPU/CPU Fun House United States flag United States
70908 20106721660 Flipper Board Dennis Braun United States flag United States
62284 20106721740 Display/Driver Dennis Braun United States flag United States
60321 20206629440 Other/Unknown Fun House United States flag United States
62736 20206630230 Display/Driver Fun House Slovenia flag Slovenia
49644 20206630230 Flipper Board Fun House Korea, Democratic People's Republic of flag Korea, Democratic People's Republic of
80263 20206676270 MPU/CPU Fun House United States flag United States
63498 20206693830 MPU/CPU Fun House Germany flag Germany
50551 20206698790 Sound Board Dennis Braun United States flag United States
68961 20406687130 MPU/CPU Dennis Braun United States flag United States
72686 20606734650 MPU/CPU Alexander Visotin Australia flag Australia
62872 20706688120 Flipper Board Fun House Netherlands flag Netherlands
49716 20706701090 Display/Driver Fun House Netherlands flag Netherlands
57161 21006663450 Flipper Board Dennis Braun United States flag United States
65073 21006664650 MPU/CPU Dennis Braun United States flag United States
51964 21006695960 Display/Driver Fun House Finland flag Finland
32858 21006715090 Sound Board Antti Peltonen Finland flag Finland
31384 21006802600 MPU/CPU Antti Peltonen Finland flag Finland
27000 21006803200 Display/Driver Antti Peltonen Finland flag Finland
31426 21006807760 MPU/CPU Antti Peltonen Finland flag Finland
74653 21006808610 Sound Board Dennis Braun United States flag United States
66912 21006890850 MPU/CPU Clive Pedersen United Kingdom flag United Kingdom
76397 21406642130 MPU/CPU Fun House Italy flag Italy
32451 21406749490 Flipper Board Antti Peltonen Finland flag Finland
61866 21706738690 Sound Board Fun House United States flag United States
33484 22006678090 MPU/CPU Rod McLarge Denmark flag Denmark
60539 22006681500 MPU/CPU Fun House Germany flag Germany
61722 22006683080 MPU/CPU Dennis Braun United States flag United States
45942 22106626530 Display/Driver Antti Peltonen Finland flag Finland
41989 22306812920 Flipper Board Antti Peltonen Hungary flag Hungary
11589 22306813230 Solenoid Driver John Duchi United States flag United States
72436 22506688190 Solenoid Driver Alexander Visotin Australia flag Australia
63648 22506692100 Sound Board Dennis Braun United States flag United States
30311 22506813260 Solenoid Driver Antti Peltonen Finland flag Finland
72252 22506813920 Solenoid Driver Antti Peltonen Finland flag Finland
26832 22506816150 Solenoid Driver Antti Peltonen Finland flag Finland
26543 22506816590 MPU/CPU Antti Peltonen Finland flag Finland
28750 22506819310 Flipper Board John Vorwerk United States flag United States
29274 22506892050 Display/Driver Antti Peltonen Finland flag Finland
20943 22706569010 Display/Driver John Vorwerk United States flag United States
58531 22706668660 Sound Board Dennis Braun United States flag United States
68197 22706668750 Display/Driver Fun House United States flag United States
29016 22706669770 Display/Driver Pat Herbert United States flag United States
78549 22706672310 MPU/CPU Alexander Visotin Australia flag Australia
54535 22706684810 Display/Driver Fun House United States flag United States
26841 22706687580 Solenoid Driver Antti Peltonen Finland flag Finland
67565 22706731630 Solenoid Driver Dennis Braun United States flag United States
59502 22706740600 Solenoid Driver Dennis Braun United States flag United States
36317 22706896990 Solenoid Driver Ric Turner 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 6/29/2007 12:22:32 PM by Jess Askey
On Bally games from this era, there are serial number stickers everywhere. There should be one on the front of the cabinet under the coin door, one on the back of the cabinet on the model sticker and I believe there is one on the top of the backbox as well (this is a good one to look at if the others are damaged). Also, all the game printed circuit boards have the original serial number on them as well.
Posted 11/30/2008 10:30:39 AM by Steve fisher
also look on the power pack
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 20006060126, 20006060176, 20006060222 ^(2[0-9][0-9]06)(?<sortdata>[0-9][0-9][0-9][0-9][0-9][0-9])$ True
International Game 20006I065996, 20006I065504, 20006I065187 ^(2[0-9][0-9]06)(I)(?<sortdata>[0-9][0-9][0-9][0-9][0-9][0-9])$ True
Experimental Game 20006X065504, 20006X065187 ^(2[0-9][0-9]06)(X)(?<sortdata>[0-9][0-9][0-9][0-9][0-9][0-9])$ True


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...