What Argentinian company made the  Ballester–Molina, and also manufactured aircraft, machinery, and vehicles?
Hispano-Argentina Hispano-Argentina was an Argentinian automotive and engineering company that manufactured vehicles, aircraft, machinery, weaponry and parts for public works.
Buenos Aires Midland Railway The Buenos Aires Midland Railway (BAM) was a British-owned railway company which operated in Argentina, where it was known as Ferrocarril Midland de Buenos Aires. The company built and operated the gauge (metre gauge) line between Puente Alsina and Carhué in Buenos Aires Province.