| H III 10, 375 | 1889 | Tartumaa — Otepää | Laos, August |
| H III 10, 376/7 (1) | 1889 | Tartumaa — Otepää | Laos, August |
| H III 10, 377/8 (2) | 1889 | Tartumaa — Otepää | Laos, August |
| H III 10, 378/80 (3) | 1889 | Tartumaa — Otepää | Laos, August |
| H III 10, 381 (4) | 1889 | Tartumaa — Otepää | Laos, August |