Printed 'Ministerio de Agricultura' cover franked with 3 x 2c grey brown with 'M.A.' Ministry of Agriculture' overprint with serifs (SG OD57A) and 1939 10c maroon with 'SERVICIO OFICIAL' overprint (SG O680) all tied by BUENOS AIRES cds's dated 15 OCT 1940 with official 'Signature' handstamp in purple alongside. Addressed to USA. A nice combination of issues.