The story
Founded by Maschinenfabrik Esslingen in 1887, in Saronno.1
The origins of the engineering company are to be found in a framework of political agreements of the economic-military alliance assumed by the Kingdom of Italy, the German Empire and the Austro-Hungarian Empire in the early 1880s. Favoured by these international cooperation agreements, the German company Maschinenfabrik Esslingen founded the Costruzioni Meccaniche di Saronno in the Varese municipality and began to manufacture its renowned steam locomotives in Italy.
From Wikipedia’s article on Costruzioni Meccaniche di Saronno, shared under CC BY-SA 4.0.3