The auction I purchased this from said it is an Andrew Gunderson Landscape Pastel. It is in a frame with glass, the frame is very old with torn black paper on the back. The painting is on a very thin board (not canvas). It has some small damage the the bottom from a nail holding the back into the frame (picture will show). My reason for sending this to you, is that it has Andrew Gunderson signed on the bottom right as a full name. I read that he signed A. Gunderson or Gunderson but I do not see where a full name was signed. I also read that he numbered his paintings on the back and this one does not have anything on the back that I could see.

25.5in X 33.5in with frame, 18.2in X 26.2 in without frame