| Catalog Number | Thumbnail | Denom. | Perf. | Description | Color | Issue Date | Click for Details | Click for Plate Number | Click for Tagging Info | Click for eBay Value |
| OX1 |
| none | 12 | Liberty within an oval and phrase "Officially Sealed" - background inscribed "Post Obitum" | Brown | 1/1/1879 |  |  |  |
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| OX2 |
| none | 12 | Liberty within an oval and phrase "Officially Sealed" - background inscribed pattern of loops in cycloidal ruling - Printer name in lower ribbon | Redish Brown | 3/31/1879 | | | |
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| OX3 |
| none | 12 | Liberty within an oval and phrase "Officially Sealed" - background inscribed pattern of loops in cycloidal ruling - Printer name in lower ribbon | Yellow Brown | 6/6/1879 | | | |
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