Diagram of a pendulum with a red line and a white background

Large white building with a cross on top of it

Engraving of a woman holding a baby in her arms

Ivory netsuke of a frog on a grey surface

Tree in the middle of a snowy yard

Black and white drawing of a cityscape with a number of buildings

Black and white photo of a factory with a few buildings

Open book with a drawing of a line graph on it

Black and white photo of a man sitting in a chair surrounded by candles