Black and white photo of a tractor plowing a field with a cultivator

Drawing of a group of people riding on top of a horse-drawn carriage

Black and white drawing of a city with a river in the foreground

Piece of paper with Chinese calligraphy written on it

Painting of a woman sitting at a table with a man standing beside her

Paper with a drawing of two green and red mayfly insects on it

Old black and white photo of a man standing in a factory

Drawing of a horse with a saddle on its back

Drawing of a man and a woman standing side by side