Yet another eBay find... this Arduino Duemilanove came stock with a ATMEGA328 and an Italian flag "bubble" decal. Other than that, there is no other information on this unit.
Did this one come after the Duemilanove with the ATMEGA168?
Are those big rubber feet after-market (see image)?
I paid $2USD and $5 shipping for this historic artifact. Task for this community is to expose this piece of Arduino history.
I believe that was "the Arduino" before they released the 'Uno'.
There was an 'Arduino NG' before it, others.
The rubber feet are 'aftermarket'.
Mine has the same feet in about the same locations. They may have come with it. I don't remember if they came with it or I got them later and picked about the same positions for them.
A big difference was the LED on pin 13 is unbuffered which can cause some problems when using it for I/O.
There is another thread about it here.
@stievenart See posts #2 and #3 in @oldcurmudgeon's link to your thread from August. Same board.
Yo! you just refered me to my own post. Wait! I will talk to the original poster.
Yeah, have a word with him, will you? He's gone circular!
But the MPU was socketed, so... the judge would dismiss your case.
If there's a date code on anything else, particularly if permanently affixed, that might help, though it's not definitive. Chip inventories at suppliers, and manufacturers, can hold any number of identical devices, and no one says they have to use the oldest devices first, so good luck with that as well. If every date found on the board was consistently more recent, then it begins to carry weight.
There is a date code on the white one and all the ones like the white one I have found. They have an ATMEGA168 on them. Please note the silk screen where it says "ATMEGA328" on the blue one and not on the white one.
If there is a date code it would be under the Italian bubble flag decal.
If I try to peal that decal back the foil with seperate from the clear bubble 
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