Public domain photos

The image shows an open book with a drawing of a telescope on it. The telescope is depicted in great detail, with its various components such as the barrel, lens, and handle clearly visible. The paper also contains text, likely providing further information about the telescope.

The image shows an open book with a drawing of a telescope on it. The telescope is depicted in great detail, with its various components such as the barrel, lens, and handle clearly visible. The paper also contains text, likely providing further information about the telescope.Open in library