Bookplate: a frame of linked kidneys surround a view from a scholar's latticed window. A microscope and laboratory glassware sit on the window sill with books piled beneath.
Portrait of a nude woman standing underneath an apple tree. A man is seated on the ground viewing an apple through a magnifying glass. Designed by Dr. B. and engraved by Fritz Widmann.
Picture showing a nude woman sitting on a saw. On open book is shown in the background. The border is composed of geometric patterns. Drawn by Leon Eygelshoven.