Salem Nov. 19. Brown straight line postmark with line above and below, on incoming folded letter datelined "St. Petersburg (Russia), 20 Aug 1792" to New England abolitionist and industrialist Mose Brown in Newburyport, manuscript "Sh 10" rate (8¢ inland plus 4¢ ship fee), Very Fine. Estimate  $300 - 400. $0 (Image)