Nice pair of copper engraved maps. First (11 x 7.2") covers the Rio de la Plata estuary with Buenos Aires. The bay is marked with soundings, anchorages, and shoals. Decorative title cartouche. Second (12 x 8") is a detailed map of the region of northern Argentina with Paraguay, Uruguay, southern Brazil and parts of Bolivia and Chile. Engraved by A. v. Krevelt, 1771.