Public domain photos

The image shows a black and white drawing of a globe on top of a table, with text written on it. The globe appears to be a pendulum, with a cylindrical shape and a handle on the side. The text on the paper is likely a description of the pendulum and its purpose.

The image shows a black and white drawing of a globe on top of a table, with text written on it. The globe appears to be a pendulum, with a cylindrical shape and a handle on the side. The text on the paper is likely a description of the pendulum and its purpose.Open in library