This would actually be my grandmother, my mom has written "My mom" on the back. My grandmother died when my mom was 18, so Dorothy probably did this before 1943.
Oil painting, a reproduction, a copy, on 8.5" x 11" plain,acid-free,"natural" tone paper. Original is not for sale. Slight images might show on the outer edges of your card stock copy outside the image; you will trim the paper to your frame.