|
| 1861 |  | 0.43$ "Oxyura leucocephala" (see Description)1 pc 20 k 1991  USSR |
| 1862 |  | 0.13$ Soviet-Austrian Space Flight1 pc 20 k 1991 USSR |
| 1863 |  | 0.16$ White Stork (Ciconia ciconia)1 pc 10+5 k 1991 USSR |
| 1864 |  | 0.06$ Greater Scaup (Aythya marila)1 pc 15 k 1991 USSR |
| 1865 |  | 0.07$ Baikal - A Unique Natural Complex1 pc 15 k 1991 USSR |
| 1866 |  | 0.06$ Volga - Region of Ecological Disaster1 pc 10 k 1991 USSR |
| 1867 |  | 0.1$ 121st Birth Anniversary of V.I. Lenin1 pc 5 k 1991 USSR |
| 1868 |  | 0.05$ Northern Pintail (Anas acuta)1 pc 5 k 1991 USSR |
| 1869 |  | 0.48$ Brown Kiwi (Apteryx australis)1 pc 40 c 1991  New Zealand |
| 1870 |  | 0.1$ Rock Wren (Xenicus gilviventris)1 pc 45 c 1991 New Zealand |
| 1871 |  | 0.19$ Rock Wren (Xenicus gilviventris)1 pc 45 c 1991 New Zealand |
| 1872 |  | 0.08$ "ERS-1" European Remote Sensing Satellite1 pc 60 Pf. 1991  Germany |
| 1873 |  | 0.03$ Red-breasted Merganser (Mergus serrator)1 pc 3.50 L 1991  Romania |
| 1874 |  | 0.19$ Marianne of Briat1 pc 4 ₣ 1991  France |
| 1875 |  | 0.15$ "The Midday Woman and the Woman from Nochten" - Sorbic Sagas1 pc 100 Pf. 1991 Germany |
| 1876 |  | 0.29$ Bicentenary of Brandenburg Gate1 pc 100 Pf. 1991 Germany |
| 1877 |  | 0.31$ Zollern II Dortmund Mine Industrial Museum, Westphalia1 pc 80 Pf. 1991 Germany |
| 1878 |  | 0.26$ Frankfurt airport1 pc 10 Pf. 1991 Germany |
| 1879 |  | 0.17$ "F" Flower1 pc F 1991  United States |
| 1880 |  | 0.13$ Flag Over Mt. Rushmore1 pc 29 ¢ 1991 United States |
Piece: 13,334
Total: 3,550$+