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: 81,534,479  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)
White Water - IPSND/IPDB No. 2768 - January 1993
Backglass Image
Manufacturer: Williams Electronic Games, Inc., a subsidiary of WMS Inc.
Players: 4
MPU: Williams WPC (Fliptronics 2)
Production Run: 7,008
Game Type: Solid State Electronic (SS)
Model: 50018
Submissions: 375 serials of 7,008 (5.35%)
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.

963,439 (13,747.70%) linear / 29,676(423.46%) in 103 clusters 350 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
34592 50018100068 Coin Door Rod McLarge United States flag United States
8597 50018100080 Other/Unknown Bill Ung United States flag United States
63087 50018100147 MPU/CPU Dennis Braun United States flag United States
22386 50118013822 Other/Unknown Elvira United States flag United States
20942 50118016082 Display/Driver John Vorwerk United States flag United States
59461 50118016182 Display/Driver Dennis Braun United States flag United States
76667 50118023562 Power Supply Charles P United States flag United States
56294 50118029332 Flipper Board Dennis Braun United States flag United States
60592 50118031572 MPU/CPU Dennis Braun United States flag United States
56891 50118032042 Solenoid Driver Dennis Braun United States flag United States
60567 50118033912 Solenoid Driver Dennis Braun United States flag United States
58293 50118034012 Display/Driver Fun House United States flag United States
82085 50118035342 Solenoid Driver Clive Pedersen New Zealand flag New Zealand
11819 50118815000 MPU/CPU Dan Gutchess United States flag United States
67738 50118822390 MPU/CPU Dennis Braun United States flag United States
27801 50118846210 Solenoid Driver Pistol Pete United States flag United States
41950 50118847850 Display/Driver Rod McLarge United States flag United States
47992 50118916970 MPU/CPU Dennis Braun United States flag United States
42696 50118916990 Display/Driver John Vorwerk United States flag United States
47216 50118917950 Display/Driver Rod McLarge United States flag United States
32648 50118918150 Flipper Board Seal Clubber United States flag United States
8598 50118918290 Other/Unknown Bill Ung United States flag United States
17403 50118920290 Display/Driver John Vorwerk United States flag United States
60332 50118927660 Sound Board Dennis Braun United States flag United States
61809 50118928900 Display/Driver Dennis Braun United States flag United States
52631 50118929240 Display/Driver Fun House United States flag United States
10684 50118929770 Solenoid Driver John Duchi United States flag United States
31740 50118939230 Display/Driver Rod McLarge United States flag United States
53208 50118950710 MPU/CPU Fun House United States flag United States
74570 50118960220 Power Supply Dennis Braun United States flag United States
26947 50218744380 Sound Board Antti Peltonen Finland flag Finland
50631 50218744630 Display/Driver Dennis Braun United States flag United States
63487 50218746740 MPU/CPU Fun House Germany flag Germany
49771 50218746780 Display/Driver Fun House Korea, Democratic People's Republic of flag Korea, Democratic People's Republic of
71943 50218746850 Solenoid Driver Antti Peltonen Finland flag Finland
61935 50218801080 Sound Board Dennis Braun United States flag United States
71294 50218801910 MPU/CPU Fun House Italy flag Italy
78249 50218806220 MPU/CPU Fun House Italy flag Italy
76014 50218848930 Display/Driver Alexander Visotin Australia flag Australia
41945 50218851970 Display/Driver Rod McLarge United States flag United States
67270 50218852040 Sound Board Clive Pedersen United Kingdom flag United Kingdom
48938 50218936950 Flipper Board Fun House Korea, Democratic People's Republic of flag Korea, Democratic People's Republic of
42379 50318952120 Display/Driver Antti Peltonen Finland flag Finland
61731 50418021077 Coin Door Etabeta Italy flag Italy
79198 50418827340 Solenoid Driver Fun House Germany flag Germany
82027 50418842900 Sound Board Fun House United States flag United States
80302 50718805020 MPU/CPU Fun House United States flag United States
50162 51018004222 Display/Driver Rod McLarge Netherlands flag Netherlands
68182 51018006952 Sound Board Dennis Braun United States flag United States
50419 51018007132 Display/Driver Dennis Braun United States flag United States
50220 51018007132 Display/Driver Fun House United States flag United States
49772 51018809540 Display/Driver Fun House Korea, Democratic People's Republic of flag Korea, Democratic People's Republic of
59627 51018809660 Display/Driver Fun House Italy flag Italy
29206 51018809910 Flipper Board John Vorwerk United States flag United States
59537 51018811750 Display/Driver Antti Peltonen Finland flag Finland
59536 51018814300 Flipper Board Antti Peltonen Finland flag Finland
65207 51018814410 Flipper Board Fun House Slovenia flag Slovenia
69192 51018840370 Display/Driver Clive Pedersen United States flag United States
51462 51018856890 Display/Driver Fun House Korea, Democratic People's Republic of flag Korea, Democratic People's Republic of
31118 51318825320 MPU/CPU Matías N. Brusa Argentina flag Argentina
77038 51318825400 MPU/CPU Charles P United States flag United States
56560 51318845120 Display/Driver Dennis Braun United States flag United States
60484 51318849870 MPU/CPU Fun House Germany flag Germany
57763 51318949900 Flipper Board Fun House Netherlands flag Netherlands
69646 51418011522 Display/Driver Clive Pedersen Italy flag Italy
75990 51418747350 Solenoid Driver Alexander Visotin Australia flag Australia
28961 51418804100 Sound Board Ric Turner United States flag United States
52248 51518010032 MPU/CPU Rod McLarge United States flag United States
71985 52018933270 MPU/CPU Fun House Italy flag Italy
59838 52018937070 Sound Board Dennis Braun United States flag United States
82569 52118012662 Sound Board Antti Peltonen Finland flag Finland
29160 52118822230 Flipper Board Antti Peltonen Sweden flag Sweden
82568 52118822330 Flipper Board Antti Peltonen Finland flag Finland
73668 52218022582 MPU/CPU Fun House Italy flag Italy
29517 52218022582 Display/Driver Ric Turner United States flag United States
69693 52218023692 Flipper Board Dennis Braun United States flag United States
57183 52218815190 Display/Driver Fun House Switzerland flag Switzerland
51304 52218815350 Flipper Board Dennis Braun Netherlands flag Netherlands
34784 52218918090 Display/Driver Rod McLarge Canada flag Canada
76067 52218918400 Display/Driver Fun House Italy flag Italy
69226 52218918790 Display/Driver Fun House Italy flag Italy
76078 52518831740 Flipper Board Fun House Italy flag Italy
76565 52518843040 MPU/CPU Alexander Visotin Australia flag Australia
71979 52518852770 Flipper Board Fun House Italy flag Italy
77039 52718938570 Flipper Board Charles P 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 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 50018100146, 50018100150, 50118004152 ^(5[0-9][0-9]18)(?<sortdata>[0-9][0-9][0-9][0-9][0-9][0-9])$ True
International Game 52718I605570, 52118I856930, 51718I963940 ^(5[0-9][0-9]18)(I)(?<sortdata>[0-9][0-9][0-9][0-9][0-9][0-9])$ True
Experimental Game 52718X605570, 52118X856930, 51718X963940 ^(5[0-9][0-9]18)(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...