Beach with Fishing Boats (recto); Landscape with Farmer Plowing a Field (verso) by Eugène Louis Boudin https://www.rawpixel.com/image/8970308/image-paper-cloud-personFree Image from public domain licensePetticoats on the Beach (recto); Breton Women on the Beach (verso) by Eugène Louis Boudin https://www.rawpixel.com/image/8975229/image-paper-people-artFree Image from public domain license