I made web site where Atari users can enter their serial numbers of Atari computers and Atari peripherals (equipment). You can also add pictures of motherboards, cases, stickers...

http://chipmunk.atari.org/

Please use it! If we type enough serial numbers, we can make some conclusion regarding Atari computer production!

Like Mark_G suggested, there is "German tank problem" calculation if you have enough serial numbers in database.

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Also, if you have any suggestion, please write it here and I will include them first in ToDo list :) than in site.

Also please report any errors on site or in database.

And last, if someone want, I can share PHP source of web site.