This section displays covers mailed to and from Indian Territory before July 1, 1851. The covers are listed by post office in the Indian Territory on subpages by the alphabet. A separate page contains uses of the 1847 issue in Indian Territory, There are many covers from this period, perhaps more than people think. There are many I don't have scans of, so this should not be considered a complete list of what exists. Additions and corrections are welcome.
Click on the Post Office to go to the subpage with its covers.