Lanman & Kemp Correspondence from Guatemala
Guatemala City, Guatemala, October 21, 1862, indistinct Franco marking, per steamship via Panama, received New York November 25, New York "STEAMSHIP 10" marking, rated 10¢ due as incoming steamship letter for distance less than 2,500 miles.
Guatemala City, Guatemala, January 21, 1864, Juan Serigiers sender's cachet, endorsed "per Vapor via Panama," New York "STEAMSHIP 10" marking, rated 10¢ due as incoming steamship letter for distance less than 2,500 miles.
Guatemala City, Guatemala, July 7, 1864, 2 reales internal postage, per steamship via Panama, Atlantic and Pacific Steamship Co. from Aspinwall to New York, arrived New York August 6, 1864, New York "STEAMSHIP 10" marking, rated 10¢ due as incoming steamship letter regardless of distance.