Dunbarton, N.H./Mar. 20. Rimless circular postmark with manuscript date on 1826 folded letter to Hanover, N.H., matching straight line "Free" handstamp and manuscript "David Tenny P.M." below; light cover aging, otherwise Very Fine, rare with only two examples recorded, ex-Courser. Estimate  $150 - 200. $0 (Image)