A gyroscope hangs over a darkened globe like a small planet of its own: a squat, riveted metal housing with two thin spindles piercing it at odd angles, a fleur-de-lis wind-rose glowing beside it. Underneath, in heavy block letters: MICROTECNICA TORINO.
The poster sells precision, and draws it that way — the gyrocompass rendered with the same graphite sheen you would expect on a photograph, floating against the flat illustrated globe, so that the one real, engineered object in the image reads as more solid than the earth behind it. The title above names the product: «Bussole Giroscopiche», gyroscopic compasses, instruments that hold a true heading independent of magnetic north — indispensable on steel-hulled ships and in aircraft, where a magnetic compass alone is unreliable.
Microtecnica was a real Turin precision-engineering firm, founded in 1929 by the engineer Daniele Agostino De Rossi in the city’s San Salvario district. Through the 1930s and into the Second World War it built exactly this class of instrument — gyroscopic compasses, autopilots for aircraft, torpedo guidance systems, micrometers — supplying Italy’s military build-up; its wartime workforce is documented growing to around 3,000 by 1942. A gyrocompass advertisement from 1940–41, the date the collector attaches to this sheet, sits comfortably inside that period of the company’s history, though no source pins this specific poster to that exact year.
The sheet carries a signature in the lower corner, but it could not be read with confidence, and no illustrator could be independently matched to it: a name volunteered along with this scan turned out, on checking, to belong to a well-documented but unrelated Florentine ceramicist and decorator active decades earlier, with no known connection to industrial poster work of this kind. Rather than print a guess, we leave the artist unnamed here. Microtecnica itself, as a company still active today within the Leonardo group, is the part of the record we could verify.
About this image. The work is still protected by copyright: under Italian law (L. 633/1941) rights run for 70 years from the death of the author. Since the author has not been identified, that term cannot be considered expired, and the image is treated as fully protected. It is reproduced here for documentation, study and critical purposes only, under Art. 70 of L. 633/1941 and the fair-use provision of 17 U.S.C. §107. The scan was made by the collector from his own copy of the work — part of the period material he keeps in a private archive: owning the physical sheet is not the same as holding the rights to the work. The image is not offered for sale, no reproduction rights are granted, and any request concerning the work should be addressed to the rights holders. Cultural Heritage Online publishes this material to document it, with no celebratory intent; see our terms and the DMCA contact published there.
