Rivista di astronomia e scienze affini, 1908, a. 2, n. 04 (April)
An Italian astronomy periodical issue from 1908, published by the Società astronomica italiana with the Turin observatory, aimed at amateur and professional astronomers. Its pictures are precise engraved and photographic views of telescopes and mounted instruments, including a refractor on a tripod, an equatorial mount, and a large observatory instrument with labelled parts, useful for a designer seeking clean technical line drawing and mechanical detail.
