Close up of a plant with brown leaves on a white paper

Black and white portrait of Heinrich Egli

Portrait of Joseph von Frauenhofer

Black and white drawing of a man with a beard

Page from a book with a variety of dried flowers on it

Silver coin with an image of a man on it against a white background

Drawing of a pair of wall sconces on a piece of paper

Two zebras standing next to each other near a river

Close up of a green leaf with white spots on it