Beautiful picture of deer in the wild.

Beautiful picture of Deer in the wild. It is 23 1/2 by 35 1/2 without the frame. It is stamped as an original on the back and numbered 0542911 168 or 05429H 168 it's a little faded so hard to tell. It is signed G. Zank. I have not been able to find anyone under that name. Any information would be greatly appreciated. Thank you.