This is the story of three sleeper territorial issues.
I define territorial sleepers as large size territorial notes that don’t carry the Territory label in their title blocks—not Territory, Terr, Ter or even T—yet are genuine territorial issues from plates made during the territorial era that carry a territorial plate date.
The notes carry territorial plate dates; thus, the sleeper aspect is that you must carefully read the plate date to recognize that they are indeed territorial notes. See Table 1. The unwary miss them.
Notice that there happened to be one from each major large-size series. Each has a story to tell.
The preparation of this article was stimulated by the recent appearance of the spectacular $10 brown back from The State National Bank of Oklahoma City pictured here as Figure 1.