Black and white photo of a room filled with lots of machines

Group of men standing on top of a dirt field

Open book with a drawing of a pendulum on it

Statue of a man in a top hat sitting atop a fountain surrounded by a…

Two young boys sitting on a bench in front of a wall

Black and white drawing of a Buddhist temple with a few people…

Old topographic map of the area of the city of San Francisco

Painting of a woman in a purple dress sitting on a red chair

Old black and white photo of a woman figure skating on an ice rink