well i did eventually get the 335 i have pinned down almost exactly and authenticated by gibson
It seems serial number links to guitar which was part an special run for the Japanese Market. The “Y’” letter in the beginning was for Yamano our Distributor in Japan, but remember that was only an internal code. Unfortunately, we can not confirm you the production year of the guitar, but we assume could be 2000 because of the pot codes.
i find it funny that gibson could not tell me this info till i had done all the legwork.
I hadnt really heard of yamano gibsons before, apparently with japan being such a big market for gibson they used to be really picky with the guitars they accepted... and get the odd run of special models like this. apparently worth a little more because of it. I dont think yamano distribute for gibson anymore, much like rossetti over here