Liberia, 1918, 15¢ Black & Dark Green. Tied by "Monrovia, Liberia, 1-XI. 21" cds on registered cover to Jalapa, Mexico made from packetboat mail form, stamp with additional blue Buchanan cds from a previous usage, registry etiquette and reverse with Sierra Leone and London transit postmarks with "Certificado, Laredo, Tam., Dic 18, 1921" date stamps at corners; opened at sides for display, Very Fine, an unusual postal fraud and adversity usage to this very rare destination. Scott No. 167  Estimate $150 - 200. $0 (Image)