1911 all star photo

[tallstack]

i found a 1911 addie joss benifit first all star game photo of the all stars. i saw the one sold back in november at hunt auctions lot 109 for $45,000. only three or so exist. the paper looks to be from that time and the messurements are 10.5 by 13.5 just like one auctioned. my question would be how to authenticate it or would an early reprint be worth anything. i think i might have something here. any help would be great.
thanks, tallstack