Black and white drawing of a man sitting at a table with a globe in…

Black and white drawing of a bamboo plant with its roots visible

Black and white drawing of a man and woman in a room

Black and white drawing of a castle with a man standing in front of it

Old map of the city of Leiden

Red flag with a metal pole on a white background

Drawing of a floor plan of a building with a lot of rooms

Black and white portrait of a man with long hair

Painting of a beach at sunset