Argentina 582-583 ad sheets

Argentina 582-583 ad sheets, MNH-folded-waved, $32.00. Michel 555-558 Bl.7, 559-562 Bl.8, Euros 48.00. 200th Ann. of the establishment of regular postal service on the Plata River, 1948. Mail Coach, Train, Sailing ship, Postrider, Courier in the Andes.