Rivista di astronomia e scienze affini, 1911, a. 5, n. 07 (July)
This is an Italian astronomy periodical, the Rivista di astronomia e scienze affini, issue 7 of volume 5 from 1911, issued by the Società astronomica italiana and the Turin Astrophysical Observatory for working astronomers and observatory readers. Its pictures are small black-and-white line engravings of instruments, a graph of measured values over dates, and trade advertisements for chronometers and photographic plates, offering designers compact, precise technical drawings of 19th-century scientific apparatus with clean, legible linework.
