Baseball Any idea what this Willie Mays Auto Bat is worth??

[Stang81]

eBay: Personally Signed Willie Mays Bat - certificate NoResrv (item 200113834114 end time Jun-02-07 18:30:00 PDT)

Any idea what this might be worth if it was sent to PSA/DNA for a better COA??

LMK

Thanks
Mike