Just done some research, My guitar was made (as far as I can tell by the documents I've got ) 10/13/11, that would tie up with year = 1 ,being 2001, that would make my serial production number 4260, if we say production is 300 days a year, that would be 60 production weeks. ( assuming 5 day weeks) My date 10/13/11, would mean we had about 10 weeks production still to go, so my serial 4260 would have been 50 production weeks, this works out at 85.2 guitars a week. add the other 10 production weeks, 10x 85.2, we get 852 + 4260 = 5112 LP Customs a year, 17 LP Customs a day . Is that a feasible number for LP Customs ? I'd guess probably. If you know the production numbers, (anyone from Gibson) could you share them ? if not against company rules.