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Year 1918
15 series
| Year | Series | Vol. | Page | Stamps |
|---|---|---|---|---|
| 1918 | Centenario del Natalicio del Dr. Juan Gregorio Pujol | 2 | 30 | 21 |
| 1918 | Gral. José de San Martín | 2 | 32 | 71 |
| 1918 | Gral. José de San Martín | 2 | 35 | 3 |
| 1918 | Gral. José de San Martín | 2 | 35 | 25 |
| 1918 | S.O. - Gral. José de San Martín | OM | 26 | 4 |
| 1918 | S.O. - Gral. José de San Martín | OM | 26 | 4 |
| 1918 | S.O. - Gral. José de San Martín | OM | 40 | 7 |
| 1918 | S.O. - Gral. José de San Martín | OM | 40 | 4 |
| 1918 | S.O. - Gral. José de San Martín | OM | 56 | 5 |
| 1918 | S.O. - Gral. José de San Martín | OM | 57 | 2 |
| 1918 | S.O. - Gral. José de San Martín | OM | 70 | 8 |
| 1918 | S.O. - Gral. José de San Martín | OM | 71 | 4 |
| 1918 | S.O. - Gral. José de San Martín | OM | 86 | 23 |
| 1918 | S.O. - Gral. José de San Martín | OM | 87 | 6 |
| 1918 | S.O. - Gral. José de San Martín | OM | 111 | 6 |