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: 6,217  Serials: 50,955  Visitors: 30,270,560  Members: 3,751  Photos: 27,839  Lat/Lng: 25,037  Masks: 50,955(819.61 %)  Traits: 504  Nudges: 141,603  Backglasses: 1,862
  Most Serials: Twilight Zone(1,063)  Most Submissions: Dennis Braun(3,603)  Most Points: Rod McLarge(27,988)  Highest Quality: Jim Butler(9.15)  Most Nudges: King of Pinball(19,003)
The Addams Family - IPSND/IPDB No. 20 - March 1992
Backglass Image
Manufacturer: Midway Mfg. Co., a subsidiary of WMS Industries, Inc.
Players: 4
MPU: Williams WPC (Fliptronics 1)
Production Run: 20,270
Game Type: Solid State Electronic (SS)
Model: 20017
Submissions: 660 serials of 20,270 (3.26 %)
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.

873,863 (4,311.12 %) linear / 24,336(120.06 %) in 21 clusters 1013 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
There are no traits submitted for this game

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
30865 039600 Other/Unknown Pistol Pete United States flag United States
27790 150770 Other/Unknown Pistol Pete United States flag United States
32865 20017060085 Flipper Board Rod McLarge United States flag United States
8617 20017060131 Other/Unknown Bill Ung United States flag United States
48425 20017060408 Display/Driver Rod McLarge United States flag United States
38058 20017060537 Coin Door Rod McLarge United States flag United States
58600 20017060811 Display/Driver John Vorwerk United States flag United States
36086 20017060811 Coin Door John Vorwerk United States flag United States
62404 20017061213 Sound Board Dennis Braun United States flag United States
60336 20017061340 Sound Board Dennis Braun United States flag United States
36506 20017061398 Solenoid Driver Rod McLarge United States flag United States
17383 20017061799 Display/Driver John Vorwerk United States flag United States
62092 20017062028 Flipper Board Dennis Braun United States flag United States
62405 20017062060 Flipper Board Dennis Braun United States flag United States
59187 20017062723 Coin Door Dennis Braun United States flag United States
35546 20017062856 MPU/CPU Rod McLarge United States flag United States
27770 20017063057 Display/Driver Pistol Pete United States flag United States
56734 20017063091 MPU/CPU Fun House Korea, Democratic People's Republic of flag Korea, Democratic People's Republic of
58743 20017063121 Other/Unknown Fun House United States flag United States
58095 20017064379 Display/Driver Fun House United States flag United States
61019 20017590704 MPU/CPU Dennis Braun United States flag United States
56929 20017590785 Flipper Board Fun House United States flag United States
8612 20017590814 Other/Unknown Bill Ung United States flag United States
60868 20017591004 Other/Unknown Dennis Braun United States flag United States
33304 20017591021 Display/Driver Rod McLarge United States flag United States
9679 20017591127 Display/Driver John Duchi United States flag United States
26145 20017591202 Display/Driver John Vorwerk United States flag United States
57263 20017591480 Sound Board Dennis Braun United States flag United States
26956 20017591682 MPU/CPU John Vorwerk United States flag United States
61264 20017591812 Display/Driver Fun House United States flag United States
27109 20017591862 MPU/CPU King of Pinball United States flag United States
32772 20017591913 MPU/CPU Rod McLarge United States flag United States
25023 20017591999 Display/Driver John Vorwerk United States flag United States
58882 20017592017 MPU/CPU Dennis Braun United States flag United States
60867 20017592034 Other/Unknown Dennis Braun United States flag United States
57584 20017592231 Display/Driver Dennis Braun United States flag United States
37753 20017592375 MPU/CPU John Vorwerk United States flag United States
32092 20017592445 Power Supply Rod McLarge United States flag United States
32162 20017592690 MPU/CPU Rod McLarge United States flag United States
21735 20017592727 MPU/CPU John Vorwerk United States flag United States
58172 20017592919 Display/Driver Dennis Braun United States flag United States
33040 20017593060 Power Supply Rod McLarge United States flag United States
60942 20017593145 Solenoid Driver Dennis Braun United States flag United States
56513 20017593156 Coin Door Dennis Braun United States flag United States
49264 20017593156 Display/Driver Dennis Braun United States flag United States
60038 20017593274 Display/Driver Dennis Braun United States flag United States
62045 20017593295 Display/Driver Fun House United States flag United States
31728 20017593799 MPU/CPU Rod McLarge United States flag United States
57264 20017593807 Display/Driver Dennis Braun United States flag United States
51643 20017593867 Display/Driver Rod McLarge United States flag United States
62091 20017593899 Flipper Board Dennis Braun United States flag United States
33796 20017594084 Display/Driver Rod McLarge United States flag United States
38027 20017594341 MPU/CPU Rod McLarge Puerto Rico flag Puerto Rico
60305 20017594501 MPU/CPU Dennis Braun United States flag United States
60703 20017594516 Flipper Board Dennis Braun United States flag United States
57578 20017594554 Flipper Board Dennis Braun United States flag United States
27789 20017594586 Flipper Board Pistol Pete United States flag United States
57446 20017I040339 Display/Driver Fun House United States flag United States
32738 20017I040727 Power Supply Rod McLarge Canada flag Canada
33168 20017I041579 Other/Unknown John Vorwerk United States flag United States
39168 20017I041923 Sound Board Antti Peltonen Finland flag Finland
41988 20017I042059 Flipper Board Antti Peltonen Hungary flag Hungary
28096 20017I042582 Sound Board Ric Turner United States flag United States
62222 20017I042684 Display/Driver Fun House Poland flag Poland
49633 20017I042827 MPU/CPU Fun House Korea, Democratic People's Republic of flag Korea, Democratic People's Republic of
60538 20017I042993 Display/Driver Fun House Germany flag Germany
28830 20017I043716 MPU/CPU pinballservice-nl Netherlands flag Netherlands
50112 20017I043784 MPU/CPU Fun House United States flag United States
57973 20017I043790 Display/Driver Fun House Germany flag Germany
51766 20017I043802 Solenoid Driver Rod McLarge United States flag United States
48922 20017I044628 Display/Driver Fun House Korea, Democratic People's Republic of flag Korea, Democratic People's Republic of
61483 20017I044893 MPU/CPU Dennis Braun United States flag United States
58987 20017I045521 Display/Driver Fun House Italy flag Italy
28181 20017I045612 Other/Unknown Pistol Pete United States flag United States
49627 20017I045719 Display/Driver Fun House Korea, Democratic People's Republic of flag Korea, Democratic People's Republic of
33518 20017I045771 MPU/CPU Antti Peltonen Sweden flag Sweden
59915 20017I046075 MPU/CPU Fun House Belgium flag Belgium
61608 20017I046627 Other/Unknown Fun House United States flag United States
53023 20017I046943 Display/Driver Dennis Braun United States flag United States
49049 20017I595310 Other/Unknown Dennis Braun United States flag United States
59124 20017I595399 Coin Door Dennis Braun United States flag United States
61020 20017I595469 Display/Driver Dennis Braun United States flag United States
32904 20017I595640 MPU/CPU Rod McLarge United Kingdom flag United Kingdom
59213 20017I595941 MPU/CPU Fun House United States flag United States
10558 20017I595956 Display/Driver John Duchi United States flag United States
49051 20017I596179 Other/Unknown Dennis Braun United States flag United States
48925 20017I596706 MPU/CPU Fun House Korea, Democratic People's Republic of flag Korea, Democratic People's Republic of
59407 20017I596945 Display/Driver Fun House Italy flag Italy
59038 20017I596958 Display/Driver Fun House Austria flag Austria
61287 20017I597529 Flipper Board Fun House Germany flag Germany
58341 20017I597539 Coin Door Dennis Braun United States flag United States
27794 20017I598049 Solenoid Driver Pistol Pete United States flag United States
23598 20017I598648 MPU/CPU John Vorwerk United States flag United States
19432 20017I598660 Sound Board John Vorwerk United States flag United States
10118 20017I598843 Other/Unknown Bill Ung United States flag United States
54515 20017I599316 Display/Driver Fun House Germany flag Germany
58990 20017I599456 Display/Driver Fun House Italy flag Italy
35886 20017I599509 Flipper Board Matías N. Brusa Argentina flag Argentina
53044 20017I599676 MPU/CPU Rod McLarge United States flag United States
33483 20017I599938 Sound Board Rod McLarge United States flag United States
29994 345740 Other/Unknown Pistol Pete United States flag United States
28121 360370 Other/Unknown Pistol Pete 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 20017593478, 20017593529, 20017053512 ^(20017)(?<sortdata>[0-9][0-9][0-9][0-9][0-9][0-9])$ True
International Game 20017I599612, 20017I599610, 20017I599609 ^(20017)(I)(?<sortdata>[0-9][0-9][0-9][0-9][0-9][0-9])$ True
Experimental Game 20017X599612, 20017X599610, 20017X599609 ^(20017)(X)(?<sortdata>[0-9][0-9][0-9][0-9][0-9][0-9])$ True
Playfield 150177, 599610 ^(?<sortdata>[0-9][0-9][0-9][0-9][0-9][0-9])$ 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...


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