The Robin Hood air rifles and pistols were made by the Industrias de Armas Pasper in Avellaneda, Argentina, from about 1968 to the early 1990's, when the company closed down. The company was established by two Italian immigrants, Don Pastorino and Don Peraso in 1958, and the company name Pasper was a combination of their names. Their speciality was using die-cast alloy for the major components of their guns. The Robin Hood Model 73 air rifle was introduced in 1973.
(Information from the Encyclopedia of Spring Air Pistols, 2nd Edition. 2022)