The Offices
Mexico in 1868 was administratively divided into 41 (40?) postal districts each with its main office (usually the most important town within the division) and various sub offices. Stamps distributed from Mexico City bearing a district number and year overprint would, on arrival, be hand stamped with the district name then be further distributed to the sub offices. Click on any of the district names (below or left) to see examples, including sub office usage (indicated by the cancellation).
| 1 | Mexico City | 22 | Durango |
| 2 | Veracruz | 23 | Oaxaca |
| 3 | Guadalajara (to 1869) | 24 | Cuernavaca |
| 4 | Puebla | 25 | Acapulco |
| 5 | San Luis Potosi | 26 | Campeche |
| 6 | Guanajuato | 27 | La Paz |
| 7 | Monterrey | 28 | Chiapas |
| 8 | Mazatlan | 29 | Victoria |
| 9 | Matamoros | 30 | Saltillo |
| 10 | Morelia | 31 | Ures |
| 11 | Colima | 32 | Tixtla Guerrero |
| 12 | Queretaro | 33 | Huejutla |
| 13 | Zacatecas | 34 | Maravatio |
| 14 | Jalapa | 35 | Tula |
| 15 | Tulancingo | 36 | Aguascalientes |
| 16 | Toluca | 37 | Lagos |
| 17 | Pachuca | 38 | Tabasco |
| 18 | Orizava | 39 | Tampico |
| 19 | Merida | 40 | Tlaxcala |
| 20 | Cordova | 41 |
Tacubaya (no stamp usage with "41" on record.) |
| 21 | Chihuahua | 41 | Guadalajara (1869 and after) |
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Every main office except Tacubaya received at least some stamps in each of the five denominations. Therefore every district number/denomination combination is possible. However, not every main office received all denominations for each of the five possible years, so there are those district/denomination/years that are simply not available. Collectors of this issue, for instance, in pursuit of the district/denomination/year combinations are in for a tedious search for thin figure 12 centavo stamps with a '69 date, and even then they must be satisfied with the lone district Saltillo. The pages (stamps) exhibiting stamps in district/denomination/year format provide an array of what a collector can expect if pursuing a "complete" collection of this issue. The layout of the offices will exhibit a stamp where one is owned by this collector. In the absence of a stamp the viewer will either see the word "NONE" or a number. "NONE" indicates that there were no deliveries according to the official records. And a number in the cell represents the number of stamps delivered, which will be some indication of how difficult it should be to locate the stamp. Any quantity under 200 will likely result in a difficult search as there may or may not be any surviving candidates. |