11th International Botanical Congress Seattle, Washington

First Day of Issue Art Craft PSEUDOTSUGA MENZIESII FOUQUIERIA SPLENDENS CYPRIPEDIUM REGINAE FRANKLINIA ALATAMAHA Commemorating 11th INTERNATIONAL BOTANICAL CONGRESS SEATTLE, WASHINGTON SEATT AUG 2 23 D 1969 Pseudotsuga menziesii XIth Judso S Lindsey 4314). Nelson Di Peoria Ill 6¢ SIONAL- UN BOTANICAL FIRST DAY OF ISSUE