Guanacaste overprint: 1885 5c Blue violet on cover
With 16mm overprint in red. Horizontal pair tied by “Liberia” in oval pmks. on cover to New York, matching “Liberia/7 Abrl. 87/Costa Rica” c.d.s. alongside. Costa Rica transit marking and New York back stamp, Alfonso Salazar corner card on backflap. Stamps with a few trivial toned specks. Very fine; an important cover of not only Guanacaste, but in all of Costa Rican philately; 1987 PF certificate.
Selling price: $11,000
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