Mexico, 1839 La Guardia, Spain to Puebla, cover endorsed "Correo Maritimo" with red "Galicia Guardia" origin oval handstamp, boxed "Vera Cruz, Septiembre 27" date stamp and reverse with fancy "3" in circle handstamp, with original enclosure, F.-V.F., a scarce maritime usage with the very rare Guardia oval handstamp. Estimate  $400 - 600. $0 (Image)