Il piccolo cerchio meridiano dell'Osservatorio di Pino Torinese : (determinazione delle costanti, ecc.)
A 1916 Italian astronomy monograph by Corinna Gualfredo and Giovanni Boccardi, produced for the Turin astronomical observatory at Pino Torinese and describing its small meridian circle instrument and how its constants were determined. The single picture is a black-and-white halftone photograph of the instrument mounted on a stone pier in a domed observatory room, with its telescope tube raised above a heavy circular base. For a designer, it offers a stark, technical view of precision scientific apparatus, with strong diagonal structure, cylindrical forms and grey tonal contrast against a plain interior.
