The Tanque 'Nahuel', Modelo DL 43 was a medium tank designed and built in Argentina in 1943. The name means Tiger in Araucano, an native langauge of the south of Argentina. Contrary to what is popularly believed, it was a totally indigenous design, and not a copy of the U.S. M4 'Sherman'. It's design was "inspired" by the M4, but it was not a copy. The photo on the left above shows Teniente Coronel (Lt. Colonel) Alfredo Baisi, the designer of the tank. Both photos above were taken on July the 9th, though, 4 years apart. July 9th being Argentina's independence day.
Like the M4, the 'Nahuel' was armed with a 75mm main gun, and there was a co-axially mounted 12.7mm, and
three hull-mounted 7,65mm machine guns.
This tank had a 5-man crew, and was powered by a 500 hp engine giving it a top speed of 25 mph and a range of approximately 150 miles. It had armor of 80mm maximum.
Ironically, after only 16 of these tanks were produced, production of the Nahuel ceased and U.S. M4s were supplied to Argentina. More detailed information about this tank can be found in the 1972 article "Ancora dal Sudamerica"- by Dr. Georg von Rauch in the magazine Eserciti e Armi.