Several of mine are likely one-of-ones, but only because of the autographs.
Signed T206s are getting a lot of play lately (though truthfully, I never get tired of sharing them); but, I'll try to keep it to signed T201s, like my double-signed double-folder Doyle and Meyers:
And my T201 Leifield, signed by Leifield, and stamped by Jefferson Burdick:
