This is a great idea, many thanks for all the work. I have a 1995 R4 (4 5784), not sure when they started.
R4 GT or R4 Custom? Pictures? I have seen Customs from the 93-95 period that did NOT have the Y yxxx SN format where Y=year represented y=year of manufacture, but rather a y xxxx format like Classics and preHistorics where y= year of manufacture. That is I have seen 1957 style Custom Reissue with a 3,4 or 5 as the first digit in the SN. This has been VERY confusing and I can't get a consistant, straight answer from Gibson on this. I also asked for pictures (they were on Ebay) of the tenon, and they were NOT long tenons.