Liberia, 1898-1905, 50¢ Red Brown & Black Official. In combination with 1909-12, 1¢ yellow green & black, strip of 5 + 5¢ ultramarine & black on registered Postal Service imprint cover to London, England, all tied by "Monrovia, Liberia, 3-V 17" cds's with matching "R" handstamp alongside, registry etiquette and censor tape at right, reverse with Madrid transit and London receiving date stamps, Very Fine, a rare 50¢ Official usage via Spain. Scott No. O42+115+117  Estimate $200 - 300. $0 (Image)