Public domain photos

The image shows a black and white photo of three men working in a laboratory. On the table in front of them are papers, bottles, and other objects. To the left of the table is another table with various objects on it. In the background, there is a wall with a window and a door.

The image shows a black and white photo of three men working in a laboratory. On the table in front of them are papers, bottles, and other objects. To the left of the table is another table with various objects on it. In the background, there is a wall with a window and a door.Open in library