Ditunjukkan sekarang: Mongolia - Setem-setem bayaran pos (1924 - 2025) - 24 Setem-setem.
2. February WM: Tiada Perforasi: 12
April WM: Tiada Perforasi: 12½ x 12
15. August WM: Tiada Perforasi: 11
16. September WM: Tiada Perforasi: 11½ x 12
26. September WM: Tiada Perforasi: 11½ x 12
1. November WM: Tiada Perforasi: 11½
| No. | Jenis | D | Warna | Deskripsi |
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| 337 | KH | 5M | pelbagai warna | Incachis io | 0.58 | - | 0.29 | - | USD |
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| 338 | KI | 10M | pelbagai warna | Gonepteryx rhamni | 0.58 | - | 0.29 | - | USD |
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| 339 | KJ | 15M | pelbagai warna | Aglais urticae | 0.87 | - | 0.29 | - | USD |
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| 340 | KK | 20M | pelbagai warna | Parnassius apollo | 0.87 | - | 0.29 | - | USD |
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| 341 | KL | 30M | pelbagai warna | Papilio machaon | 1.15 | - | 0.29 | - | USD |
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| 342 | KM | 60M | pelbagai warna | Agrodiaetus damon | 1.73 | - | 0.58 | - | USD |
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| 343 | KN | 1T | pelbagai warna | Limenitis populi | 2.31 | - | 0.87 | - | USD |
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| 337‑343 | 8.09 | - | 2.90 | - | USD |
December WM: Tiada Perforasi: 12
