Rivista di astronomia e scienze affini, 1909, a. 3, n. 04 (April)
An 1909 Italian astronomy periodical issued by the Società astronomica italiana with the Turin observatory, its April issue carrying trade advertisements for instruments aimed at astronomers and observatories. The pictures are precise line engravings of telescopes, transit and universal instruments, and a tripod-mounted refractor, drawn in clean detail with minimal shading and plain grey or cream backgrounds, giving a designer a clear reference for mechanical, scientific equipment forms and early twentieth-century technical advertising layout.
