This is a vintage nicely framed 1942 Quaker State Lithograph "Baltimore Oriole" No. 6 Print by Roger Tory Peterson. Roger Tory Peterson (1908-1996) was an American naturalist, ornithologist, and educator. Well known for his Peterson Field Guides, he was also a prolific artist.
The frame measures 23.5" X 29.75" X 1" and appears to be in good condition.