This poster promotes an air compressor for a steam locomotive produced by the iron foundry A. Borsig in Tegel, a suburb of Berlin. Founded in the city of Berlin in 1837 by August Borsig, the foundry produced its first locomotive in 1841 and by 1898, when it opened the Tegel factory mentioned here, it had become the second largest locomotive manufacturer in the world. German painter, graphic and typographic designer, architect, and commercial artist Martin Jacoby-Boy had studied at the Académie des Beaux-Arts in Paris. Between 1912 and 1926, he designed fonts for the typographic foundries D. Stempel (Bravour in 1912 and Verzierte Bravour in 1913) and Berthold (Jacobea in 1928). For a decade from 1919, he also worked as a production designer for such celebrated German film companies as May Films and Fritz Lang’s UfA. In 1933, he emigrated to the Netherlands, then to the United States, and finally to Argentina, where he died in 1963. His design here reflects the influence of the earlier Sachplakat (object poster) style in which the product becomes the main focus of a composition otherwise characterized by distinctive lettering and a restricted color palette.