This vintage, black and white snake head drawing is in the public domain. It’s just the snake’s head, his tongue and a bit of his body but I think that makes this animal drawing quite useful. Since you don’t have the entire snake and the way in which he seems to be standing up, you could easily position this image to make the snake look like he is coming out of something.
Over 200 illustrations from Hill’s Album of Biography and Art are now included on Reusable Art. It was published in 1882 by Thomas E. Hill.
This image is copyright free and in the public domain anywhere that extends copyrights 70 years after death or at least 120 years after publication when the original illustrator is unknown.