(Lynn, May the 20, 1820). Dateline on folded letter to the postmaster of Kingston, N.H., manuscript "½oz Free, Excess of weight ¼oz - 10" rating, no townmark; couple cover tears at bottom, otherwise Very Fine, an interesting and unusual usage. Estimate  $100 - 150. A Postmaster could send or receive letters up to ½ oz. free, but was required to pay extra weight at regular rates. $0 (Image)