Paul Gregg western watercolor original $5000 "on the big game trail" discovered

these postcards were made from this painting in 1907

 

very unusual find ... this newspaper clipping was attached to the back  from an estate sale...regarding its provenance this picture was lost for decades until an Indian rug trader got it ,, sold it n i acquired it...PLEASE REVIEW every foto..i do not see any numbers etc, appears to be a water color...$5000  phils57porsche@yahoo.com