cover War Surcharge Rate stampless covers, 1815-16, three stampless folded letters or covers, all are scarcer rates incl. '1½c' (unauthorized war surcharge rate for a 1c drop letter, Albany, N.Y.), '9' (port of entry war surcharge rate) and (76½c) represented as 'Paid 37½ Due 39' (76½c war surcharge rate, 17c x 3 = 51c + surcharge of 25½c), each cover has a minor light stain of no significance, otherwise very fine, a very useful lot of better war rate covers est.