Providence Stampless Covers, 1794-1854. Group of 18 covers; nice range with four 1790-96 straight line postmarks including "Free" congressional frank and other with manuscript "forwarded by your obt. servt. Provid May 14, 1796 D.W. Marsh" forwarder on reverse, 1815 manuscript postmark with "25½" war rate, latter drop and circular rate usages and an incoming 1783 folded letters, F.-V.F. Estimate  $500 - 750. $0 (Image)