Uruguay 979-982a strips, C426 ad sheet

Uruguay 979-982a strips, C426 ad sheet, MNH, $52.00. Michel 1453-1456, 1457-1464 Bl.33-34. Anniversaries & events in 1977. Werner Heisenberg, Victor Hess, Max Plank, Nobel Prize for Physics; World Soccer Cup Argentina-1978; Lindbergh's trans-Atlantic flight, 50th Ann. Graf Zeppelin, Concorde, Eduardo Bonilla, Count von Zeppelin; Rubens, 400th birth Ann. paintings.