I've come across a very rare and potentially very valuable vintage Hawaiian shirt. I'm probably gonna put it on ebay, but before I do, I would like to get it appraised first if possible. I was told by a not too reliable source that it could fetch a pretty penny in the Japanese collector market. Just trying to get some d.d. in as I have no idea what to even list it for. I've done the usual google searches with no luck. Any info. would be appreciated.