I was reading the jemsite guide and he said that he hasn't quite figured these out yet. Mine is C 04072717. I already know that the C is for the Cort factory. I got my guitar in 2004 so the first 2 digits are still the year it was made. I ordered my guitar in late Novemeber and recieved it early December so I'm, going to assume that the next numbers are the month it was produced. That would make my guitar produced in July. (Anyone know how long it usually is from the time a guitar leaves the factory to the time it is available for retail?) and that 2717 means that my guitar was the 2,717th guitar produced that month. So...what do you guys know/think about this?