Commemorating 11th International Botanical Congress Block of Stamps

First Day of Issue Lak PSEUDOTSUGA MENZIESII Art Craft FOUQUIERIA SPLENDENS CYPRIPEDIUM REGINAE FRANKLINIA ALATAMAHA Commemorating 11th INTERNATIONAL BOTANICAL CONGRESS EA 23 1959 VA Pseudotsuga menziesii СССССССССССС Fougieria splendens SEATTLE, WASHINGTON J. Singlsen 4314 N. Nelsm Di Seoria Del XI INTERA 6¢ CONGRESS CONGRESS TENDAN BOTANICAL 4+IX BOTANICAL FIRST DAY OF Τις XITH INTERNAL CONGRESS CONGRESS 6¢ NI 4-IX- BOTANICAL Gypsipedium reginae Franklinia alatamaha