This bat on Ebay you can see the words Powerized on it. I thought this was not put on bats until 1931, so how likely is this a "Joe" Jackson bat, seeing even his barnstorming days were over at this point or wrapping up to say the least, and not some other player names Jackson. Travis, etc.?
http://cgi.ebay.com/ws/eBayISAPI.dll...=STRK:MEWAX:IT