5. US Zip Code Blocks
Scott# 1855 CRAZY HORSE-AMERICAN INDIAN CHIEF ZIP BLOCK (4) MNH
5. US Zip Code Blocks
Scott# 1856 “SINCLAIR LEWIS” MNH ZIP BLOCK (4) NICELY CENTERED
5. US Zip Code Blocks
Scott# 1857 “RACHEL CARSON-ENVIRONMENTALIST” ZIP BLOCK (4) MNH
5. US Zip Code Blocks
Scott# 1858 “GEORGE MASON-PATRIOT & STATESMAN” ZIP BLOCK (4) MNH
5. US Zip Code Blocks
5. US Zip Code Blocks
Scott# 1860 “RALPH BUNCHE – DIPLOMAT” MNH ZIP BLOCK (4) NICELY CENTERED
5. US Zip Code Blocks
Scott# 1861 “THOMAS H GALLAUDET – EDUCATOR” ZIP BLOCK (4) MNH
5. US Zip Code Blocks
Scott# 1862 “HARRY S TRUMAN” MNH ZIP BLOCK (4) NICELY CENTERED
5. US Zip Code Blocks
5. US Zip Code Blocks
Scott# 1865 “CHARLES R DREW – MD – SURGEON” ZIP BLOCK (4) MNH
5. US Zip Code Blocks
Scott# 1866 “ROBERT MILLIKAN” MNH ZIP BLOCK (4) NICELY CENTERED
5. US Zip Code Blocks
Scott# 1867 “GRENVILLE CLARK” MNH ZIP BLOCK (4) FROM FLOATING PLATE STRIP (20)