5 c. burnt sienna in combination with Second London Printing 5 c. red-brown on blued, both with large margins, tied by light 7 line target with adjacent "CONCEPCION" datestamp  to letter sheet, dated March 24, 1856, and endorsed 'Polynesian' to Valparaiso. The entire cleaned and address partly improved, still fine. An extraordinarily rare combination. Certificate Rendon AIEP (1990) and Maier BPP (1992)