Pile of white rocks sitting on top of a sandy beach

Old book with a drawing of a man and a woman sitting under a tree

Painting of a group of people in a room

Drawing of a floor plan of a building on a white background

Woman in a black uniform and blue gloves working on a machine

Two women walking down a hallway

Black and white drawing of a machine with a wheel and various parts…

Old topographic map of the city of San Francisco

Large house with a lot of windows on the side of it