CENTRAL AMERICAN UNION. Proof Set (4 Pieces), 1971. Average Grade: BU.Proof set commemorating the 20th Anniversary of ODECA. Silver coins are variably toned. Sold in original display case.1) Gold 20 Pesos. KMX-14.2) Silver 5 Pesos. KMX-13.3) Silver 2 Pesos. KMX-X12.4) Silver Peso. KMX-11.strongSOLD AS IS/NO RETURNS./strong