- #Chicago coin baseball pinball machine values how to#
- #Chicago coin baseball pinball machine values serial numbers#
- #Chicago coin baseball pinball machine values serial number#
If a game has a serial number definition mask defined for it, then a serial mayīe marked as 'bad' if the number does not validate agains the mask. High or low for the known range of serials for this game. Examples might be that the number might be too If a serial does not fail any of the tests for a status of Warning or Bad, thenĪ serial will have a suspect status if the format is technically correct but there More submissions are received we can start to make a best guess on the serial number There is no known information on the serial number format for this game yet. The serial number submission has not yet been validated by the submitter via email.
#Chicago coin baseball pinball machine values serial numbers#
Using this method, as more serial numbers are submitted the gap analysis will get more accurate. 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. Once all the gaps and groups are determined, it sums up all the linear ranges in each group. If they are far enough apart, then the SerialBot assumes this is a gap.
If they fall within a certain threshold then the SerialBot assumes that there are valid serial numbers between the two. It groups the serial numbers together based upon how close they are to the next serial number in the sequence.
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.Ĭlustered: Clustered coverage assumes that there are gaps/skips in the serial sequence for a game. 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). For some games, this works fine because the serial numbers were sequential and without gaps (Early Bally, Early Stern, etc). 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. 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. The term 'coverage' relates to the amount of the production run that has been 'covered' in the given submissions. (1932-1977)Ĭoverage is a mathematical interpretation of the serial numbers that have been submitted so far. UNDER CONSTUCTION over 750 different gams are active (more added daily until up to date)ĪC/DC Let There Be Rock (Limited Edition)Īdventures of Rocky and Bullwinkle and FriendsĪttack from Mars (Remake Limited Edition)Īttack from Mars (Remake Special Edition)Ĭapt.Chicago Coin Machine Mfg.
Your participation is encouraged, if you have recently sold a pinball game, submit your information and we will consider adding it to our database.Ĭlick the IPDB # of the game to view sales historyĮM = Electro-Mechanical, SS = Solid State Electronic This site does not set values on games, nor should it, this is just a tool to help better educate you to estimate game value for yourself. We want to show you the facts, and let you decide what a game is worth. We list actual sold prices based on information beleived to be true to the best of our knowledge. Our price database is not a guide based on speculation.
#Chicago coin baseball pinball machine values how to#
Was to create a place where good folks can hang out and see what pinball machines are actually selling for in the real world today, and to learn for themselves how to judge what a pinball is actually worth. records of actual sales of pinball machines.
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