Yeah, that's the Heavy Heart line-up, but Snowy White isn't in that pic. Here's an interesting article I found where in the 2nd paragraph it says Green originally tried to sell the guitar to Snowy White:
http://www.thinlizzy.biz/bio-swhite.htm
Also there's this picture of Green doing a B.B. King session in June of '71, but I can't tell if that's his famous LP:
