Hello all: Recently got an American Vintage 52 Reissue after looking forever. Found a 1989 model for sale locally in amazing condition. I have a question about the serial number. It has a 4 digit number in the 9XXX range on the bridge plate. It also came with the original certificate of authenticity which matches this number. However, the production date on the COA says early 1989. Is this possible? I have seen instances on reverb where 4 digit serial number production stopped in 1988. Any help form the experts would be greatly appreciated!