Public domain photos

The image shows a man standing in front of a blackboard in a classroom, holding a stick in his hand. On the left side of the image, there is a table with various objects on it, and on the right side, there are a few people sitting on chairs. The image is in black and white.

The image shows a man standing in front of a blackboard in a classroom, holding a stick in his hand. On the left side of the image, there is a table with various objects on it, and on the right side, there are a few people sitting on chairs. The image is in black and white.Open in library