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: 49,822  Visitors: 28,257,445  Members: 3,726  Photos: 26,819  Lat/Lng: 24,925  Masks: 49,822(801.38 %)  Traits: 501  Nudges: 136,457  Backglasses: 1,862
  Most Serials: Twilight Zone(1,036)  Most Submissions: Rod McLarge(3,264)  Most Points: Rod McLarge(27,988)  Highest Quality: Jim Butler(9.15)  Most Nudges: King of Pinball(18,272)
The Machine: Bride of Pin·bot - IPSND/IPDB No. 1502 - February 1991
Backglass Image
Manufacturer: Williams Electronic Games, Inc., a subsidiary of WMS Inc.
Players: 4
MPU: Williams WPC (Alpha Numeric)
Production Run: 8,100(approx)
Game Type: Solid State Electronic (SS)
Model: 50002
Submissions: 242 serials of 8,100 (2.99 %)
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.

203,300 (2,509.88 %) linear / 7,493(92.51 %) in 6 clusters 405 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 Bride of Pinbot came with standard playfields but some came with diamond-plate playfields. These have a marking nearby the apron on the playfield if they are diamond-plate. Marco Albus12/23/201247

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
56171 50002660214 Other/Unknown Dennis Braun United States flag United States
26486 50002660311 Display/Driver Ric Turner United States flag United States
47312 50002660414 Display/Driver Rod McLarge United States flag United States
22866 50002660862 Display/Driver John Vorwerk United States flag United States
32853 50002660898 MPU/CPU Rod McLarge United States flag United States
10588 50002660957 MPU/CPU Dan Gutchess United States flag United States
56701 50002661059 MPU/CPU Fun House United States flag United States
49968 50002661137 Display/Driver Rod McLarge United States flag United States
31129 50002661137 MPU/CPU Rod McLarge United States flag United States
30773 50002661137 MPU/CPU John Vorwerk United States flag United States
49971 50002661240 MPU/CPU Rod McLarge United States flag United States
31559 50002661336 Power Supply Rod McLarge United States flag United States
27767 50002661354 MPU/CPU Pistol Pete United States flag United States
26485 50002661443 Solenoid Driver Ric Turner United States flag United States
59323 50002661449 Coin Door Dennis Braun United States flag United States
49341 50002661467 Display/Driver Dennis Braun United States flag United States
28238 50002661745 Sound Board John Vorwerk United States flag United States
49368 50002661862 MPU/CPU Fun House United States flag United States
60541 50002661929 Sound Board Dennis Braun United States flag United States
51002 50002661956 Display/Driver Dennis Braun United States flag United States
58056 50002662293 Solenoid Driver Dennis Braun United States flag United States
56919 50002662340 MPU/CPU Dennis Braun United States flag United States
60188 50002662456 Coin Door Dennis Braun United States flag United States
54740 50002662457 Coin Door Dennis Braun United States flag United States
54630 50002662457 Other/Unknown Fun House Korea, Democratic People's Republic of flag Korea, Democratic People's Republic of
54556 50002662502 MPU/CPU Dennis Braun United States flag United States
51777 50002662540 Display/Driver Rod McLarge United States flag United States
48667 50002I665262 Display/Driver Adam United States flag United States
56512 50002I665859 MPU/CPU Dennis Braun United States flag United States
48825 50002I665907 Sound Board Rod McLarge Netherlands flag Netherlands
49557 50002I667260 Display/Driver Fun House Korea, Democratic People's Republic of flag Korea, Democratic People's Republic of
49392 50002I667260 Coin Door Fun House Korea, Democratic People's Republic of flag Korea, Democratic People's Republic of
26844 50002I668976 Solenoid Driver Antti Peltonen Finland flag Finland
58744 50002I668978 Other/Unknown Fun House United States flag United States
51996 50002I669154 Sound Board Fun House Netherlands flag Netherlands
26860 50002I669159 Sound Board Antti Peltonen Finland flag Finland
26847 50002I669159 Sound Board Antti Peltonen Finland flag Finland
33169 50002I825355 Other/Unknown John Vorwerk United States flag United States
41337 50002I825529 MPU/CPU Rod McLarge United States flag United States
37863 50002I825545 Sound Board Rod McLarge Germany flag Germany
35827 50002I825545 Sound Board Rod McLarge Germany flag Germany
26941 50002I825616 Sound Board Antti Peltonen Finland flag Finland

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 50002660791, 50002622317, 50002622474 ^(50002)(?<sortdata>[6-8][0-9][0-9][0-9][0-9][0-9])$ True
International Game 50002I667845 ^(50002)(I)(?<sortdata>[6-8][0-9][0-9][0-9][0-9][0-9])$ True
Experimental Game 50002X667845 ^(50002)(X)(?<sortdata>[6-8][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...


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