Sweden 878-880, 881-882 pairs

$ 3.65

Click to enlarge

Sweden 878-880, 881-882 pairs, MNH, $5.05. Michel 697-699 C,D. Winners of the 1910 Nobel Prize. 1970. Paul Johann Ludwig Heyse; Otto Wallach and Johannes Diderik van der Waals, Albrecht Kossel.