FIRST DAY OF ISSUE  ARTIC EXPLORATIONS -- 1909 4-cent Stamp Block, Commmemorating 50th Anniversary of the Polar Explorationswith Illustration of Robert E. Peary Issued at Apr 6, 1959, Cresson PA. FDC U.S. 4-cent stamp Commemorating the 50th Anniversary Polar Explorations. Block of 4 stamps. Postmarked Cresson PA, Apr 6, 1959 Please shop our ever expanding store! Be sure to add us to your favorites list! Thank you. Powered by Turbo Lister The free listing tool. List your items fast and easy and manage your active items.