1837 (Sep. 14) Savannah Ga. to New York N.Y., via Charleston, folded letter originally mailed with red "Savannah Geo. Sep 14" to merchant at Charleston, then turned and posted with indistinct red "Charleston S.C." cds and "75" express mail rating, endorsed "Express Mail" rating, Very Fine, an unusual use. Estimate  $200 - 300. $0 (Image)