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EL SALVADOR (1892) Landing of Columbus. Collection of imperforate trial color plate proof pairs from the American Banknote Company. Scott Nos 60-9. 400th Anniversary of the Discovery of America by Christopher Columbus. Various small flaws.
EL SALVADOR (1968) World Meteorological Day. Set of 2 aerogrammes. Scott Nos 781-2. Available mint or canceled. Hard to find!