Fiftieth Anniversary of the Pan American Union, 1890-1940, First Day of Issue

Fiftieth Anniversary Pan-American Union Cente ADemisphere of 6ood Neighbors Dorth,Central and South America FIFTIETH ANNIVERSARY GTON HING OF THE APRI4 9-AM 1940 -FIRST DAY OF ISSUE- PAN AMERICAN UNION 1940 1890 D. C. 9.8. Wimn Ro. Br.314 aalif. nationalely WA.