Boston 18th Century Covers, 1785-99. 25 folded letters including some with interesting content; mostly straight line postmarks including BPM #'s/date - 83 1785, 87 1788, 119 1789, 88 1789 (2), manuscript postpaid 1790, 140 1792, 172 1792, 151 1793-94, plus several others 1795-1799; some usual reinforced folds, clear strikes throughout, F.-V.F. overall. Estimate  $750 - 1,000. $0 (Image)