Annuario astronomico R. Osservatorio astronomico di Torino, 1911
An 1911 astronomical yearbook issued by the Royal Astronomical Observatory of Turin, Italy, for astronomers and navigators who needed tables of positions and times. Its pictures are a dense printed table of monthly ephemeris figures in columns and rows, and a page of technical diagrams showing a ring with a central pivot and sighting lines marked W and E, with plain line work a designer could reduce to a grid or schematic motif.
