Ex found this at a yard sale. Woman was in her 80's and she said it belonged to her mother. It's very old and in the original frame. Don't know if its a lithograph or what. This is NOT the picture, but is the same scene. The one I have in front of me is almost pastel and faded but still has color. Original paper covering on the back, so I don't want to take it apart because it will reduce the value. My question is....who is the original artist of this particular theme of a praying indian?