cover Stampless covers, 1769-74, seventeen stampless folded letters from the same correspondence to Marblehead, Mass., some are transatlantics, all with ms. rate marks, eight with ms. 'Sh' (Boston ship) markings, one with clear red 'Boston' straight line pmk. (cover in poor condition), another with a poor partial strike of a 'New York' straight line pmk. in black, usual very mixed condition, some have faults or soiling, otherwise generally fine-very fine lot est.