This is about as far back in the book as I can think of, to the point that I am wondering if it is real or a cinderella. Some things I am reading suggest they are legitimate, but others not.
Here is a short read about the McDonald County secession of 1961.https://ozarksalive.com/that-time-m...om-missouri/
And a short read about the private dispatch stamps that were prepared to deliver mail to the post office.https://www.qsl.net/kg0yh/mcdonald.htm
I found this cover at a local antique store, here in SW Missouri, which got me searching for information.
Anyone have any further information about the stamps or their usage?