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: 70,534  Visitors: 81,534,422  Members: 5,788  Photos: 45,945  Lat/Lng: 39,204  Masks: 70,534(1,052.28%)  Traits: 578  Nudges: 232,981  Backglasses: 1,865
  Most Serials: Twilight Zone(1,351)  Most Submissions: Dennis Braun(6,157)  Most Points: Dennis Braun(45,844)  Highest Quality: The Knight(17.00)  Most Nudges: pinballservice-nl(29,869)
Funhouse - IPSND/IPDB No. 966 - November 1990
Backglass Image
Manufacturer: Williams Electronic Games, Inc., a subsidiary of WMS Inc.
Players: 4
MPU: Williams WPC (Alpha Numeric)
Production Run: 10,751(approx)
Game Type: Solid State Electronic (SS)
Model: 50003
Submissions: 528 serials of 10,751 (4.91%)
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.

209,389 (1,947.62%) linear / 11,018(102.48%) in 3 clusters 537 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
Diamond Plate Playfield Some games shipped with a Diamond Plate playfield installed. Diamond Plate playfields are labeled near the bottom arch. Regular playfields do not have any text on the playfield labeling it as Diamond Plate. Jess Askey2/18/2007187
STEP(S) Targets Early games had 5 targets to spell the word S-T-E-P-S while later games had only 4 targets for S-T-E-P. Jess Askey12/19/2007202
Side Rail Width The wide version has a hole for the flipper button. The narrow version does not include the flipper button. Indicate which version your game has.(Valid Values: Narrow rails,Wide rails)
Jay St@fford11/13/201991

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
21753 50003570107 Display/Driver John Vorwerk United States flag United States
32803 50003570174 Sound Board Rod McLarge United States flag United States
56932 50003570232 Display/Driver Fun House United States flag United States
71858 50003570420 MPU/CPU Dennis Braun United States flag United States
59045 50003570457 Sound Board Dennis Braun United States flag United States
49511 50003570554 MPU/CPU Fun House United States flag United States
31123 50003570554 MPU/CPU Matías N. Brusa Argentina flag Argentina
32155 50003570586 Display/Driver Rod McLarge United States flag United States
60741 50003570684 MPU/CPU Dennis Braun United States flag United States
24693 50003570799 Sound Board Carlos Regis Brazil flag Brazil
19088 50003570799 Sound Board Carlos Regis Brazil flag Brazil
64808 50003571097 Coin Door Dennis Braun United States flag United States
27064 50003571124 MPU/CPU John Vorwerk United States flag United States
65216 50003571322 Display/Driver Fun House United States flag United States
72845 50003571351 Display/Driver Charles P United States flag United States
61404 50003571379 MPU/CPU Dennis Braun United States flag United States
59125 50003571471 Coin Door Dennis Braun United States flag United States
80872 50003571704 Sound Board Alexander Visotin Australia flag Australia
80859 50003571704 Sound Board Clive Pedersen Australia flag Australia
60007 50003571753 Other/Unknown Dennis Braun United States flag United States
28733 50003571815 MPU/CPU John Vorwerk United States flag United States
71690 50003572009 Display/Driver Dennis Braun United States flag United States
50163 50003572152 Solenoid Driver Rod McLarge Netherlands flag Netherlands
58939 50003572230 Display/Driver Dennis Braun United States flag United States
70226 50003572319 MPU/CPU Clive Pedersen United States flag United States
54686 50003572413 Display/Driver Dennis Braun United States flag United States
65219 50003572953 Other/Unknown Fun House United States flag United States
60631 50003573058 Sound Board Dennis Braun United States flag United States
34912 50003573104 MPU/CPU John Vorwerk United States flag United States
62251 50003573557 MPU/CPU Fun House United States flag United States
62766 50003573588 MPU/CPU Dennis Braun United States flag United States
59174 50003573611 Display/Driver Fun House United States flag United States
32416 50003573962 MPU/CPU John Vorwerk United States flag United States
32627 50003574121 Coin Door Rod McLarge United States flag United States
49969 50003574237 MPU/CPU Rod McLarge United States flag United States
49931 50003574237 MPU/CPU Dennis Braun United States flag United States
57237 50003574373 MPU/CPU Dennis Braun United States flag United States
62493 50003574463 Solenoid Driver Dennis Braun United States flag United States
65217 50003574628 Display/Driver Fun House United States flag United States
70730 50003I575431 Sound Board Fun House Slovenia flag Slovenia
48336 50003I575432 MPU/CPU Antti Peltonen Poland flag Poland
69359 50003I575458 Display/Driver Dennis Braun United States flag United States
68701 50003I575862 Display/Driver Fun House Slovenia flag Slovenia
66681 50003I575884 MPU/CPU Fun House Italy flag Italy
14605 50003I575949 Display/Driver Matthew LaVoice United States flag United States
26484 50003I575987 MPU/CPU Ric Turner United States flag United States
65613 50003I576031 MPU/CPU Dennis Braun United States flag United States
48306 50003I576250 Sound Board Dennis Braun United States flag United States
49653 50003I576478 Solenoid Driver Antti Peltonen Finland flag Finland
62102 50003I576644 MPU/CPU Fun House Belgium flag Belgium
60282 50003I576748 Sound Board Dennis Braun United States flag United States
68917 50003I576762 Other/Unknown Fun House United States flag United States
73394 50003I577013 MPU/CPU Antti Peltonen Finland flag Finland
68225 50003I577024 Display/Driver Fun House Slovenia flag Slovenia
64230 50003I577044 Other/Unknown Fun House Slovenia flag Slovenia
61148 50003I577132 Solenoid Driver Dennis Braun United States flag United States
71942 50003I577135 MPU/CPU Antti Peltonen Finland flag Finland
64317 50003I577188 Display/Driver Fun House Germany flag Germany
58975 50003I577393 MPU/CPU Fun House Italy flag Italy
10587 50003I577545 Display/Driver John Duchi United States flag United States
49554 50003I578021 MPU/CPU Fun House Korea, Democratic People's Republic of flag Korea, Democratic People's Republic of
67825 50003I578145 Display/Driver Fun House Italy flag Italy
57232 50003I578199 MPU/CPU Dennis Braun United States flag United States
39465 50003I578327 Solenoid Driver Antti Peltonen Finland flag Finland
26547 50003I578327 Display/Driver Antti Peltonen Finland flag Finland
49689 50003I578831 Display/Driver Fun House Germany flag Germany
32474 50003I579464 Solenoid Driver Antti Peltonen Sweden flag Sweden
35681 50003I579587 Display/Driver Antti Peltonen Finland flag Finland
29941 50003I579606 Display/Driver King of Pinball United States flag United States
64316 50003I579753 Display/Driver Fun House Germany flag Germany
77667 50003I580042 MPU/CPU Alexander Visotin Australia flag Australia
76741 50003I745024 Sound Board Alexander Visotin Australia flag Australia
65313 50003I745119 Sound Board Dennis Braun United States flag United States
65442 50003I745237 MPU/CPU Dennis Braun United States flag United States
49556 50003I745307 Display/Driver Fun House Korea, Democratic People's Republic of flag Korea, Democratic People's Republic of
48704 50003I745581 Other/Unknown Fun House Korea, Democratic People's Republic of flag Korea, Democratic People's Republic of
49358 50003I745789 MPU/CPU Dennis Braun United States flag United States
49555 50003I745884 Sound Board Fun House Korea, Democratic People's Republic of flag Korea, Democratic People's Republic of

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 1/11/2007 11:54:45 PM by Bill Ung

Newer Williams and Williams/Bally games have cute little stickers everywhere. This began with System 9 games (as far as I know) and include game ID number information, as well as the serial number. There are two styles:

  • The blue/grey and white stickers ran through the Hurricane era. These include the official game ID number (ie: 541 or 50018), separated from the actual serial number by a few spaces. Early games, till about the end of 1986, had five-digit serial numbers. Since then, serial number have always been six digits.
  • The white stickers include encoded game ID numbers. Well, the ID numbers aren't identical to the one you'll find in the ROM, but it DOES match the game ID number listed on the back of the machine. The number may change based on country. This is an item still being debated somewhat.

Overall, you'll find these stickers on the fronts of the cabinets, on top of the head, on the back of the cabinet (along with an encoded manufacturing date), insi

Posted 4/28/2008 2:40:04 PM by Jim West
Pinball2000 machines have two parts each with their own serial number. The base serial number is for the playfield cabinet. This serial number is for the top unit of the pinball.
Posted 12/20/2008 10:07:35 PM by MARK SPENCER
OPEN COIN DOOR, LOOK TO RIGHT , MFG STICKER SHOULD BE ON SIDE.
Posted 2/23/2009 9:24:15 PM by Richard Harvey
Game Date Stamp for BK2K under backbox with head down.
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 50003571262, 50003571330, 50003570134 ^(50003)(?<sortdata>5[7-8][0-9][0-9][0-9][0-9])$ True
International Game 50003I779389, 50003I745830, 50003I745079 ^(50003)(I)(?<sortdata>[5-7][4-8][0-9][0-9][0-9][0-9])$ True
Experimental Game 50003X570001 ^(50003)(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...