1794 (Feb. 17) Charleston S.C. to Philadelphia Pa., folded letter with "CHAs.TON*FEB,17" straightline postmark and red manuscript "50" cent rating for double the 25¢ rate for over 450 miles, Very Fine and choice, ex-Knapp. Estimate  $300 - 400. THIS IS THE A.S.C.C. LISTING EXAMPLE OF THIS RARE POSTMARK. $0 (Image)