Join Date: Dec 2000
Location: Cincinnati, OH USA
I was just looking through my notes... a few of the guitars I had with dual serial numbers were the RG1880, RG-ART, RG1680x, and RG2420 (there may have been others... I can't find any record of the serial #'s for my RG2680m.) I don't know if any of them but the ART were really limited edition, but it certainly seems that the dual serial numbering was common on the high end guitars (J-Customs, Prestiges) made for the Japanese market. My late model RG770FM, however, only had a single number according to my records.