 On 19 November 1991, Marziale closed the deal with General Guillermo Letelier Skinner, a close associate of Pinochet's and head of the Chilean Famae ("Fábricas y Maestranzas del Ejército", Factories and Arsenals of the Army of Chile), the quasi-military firm in charge of producing the weapons.The agreement was worth more than US$6 million; the weaponry purchased included 370 tons of weaponry, including SG 542 firearms, Blowpipe surface-to-air missiles, Mamba anti-tank missiles, rockets, grenades, mortars, and loads of 7.62mm ammunition.The illegal arms deal was revealed in December 1991, when the weapons, disguised as "humanitarian aid" from a Chilean military hospital, were discovered in Budapest.