Lot
644 
Mexico, 1856 Durango Sello Negro Cover Collection, of 12 covers on exhibit pages; includes usages from Durango (Schatzkes 234+237), Cerro Gordo (246AC) x2, Real de San Dimas (252A), Gavilanes (255), Guichapa (259+259C), very scarce San Juan de Guadalupe (263A+263B), Nazas (274) x2, mineral del Oro (278+279), Papasquiaro (280+281) and Penon Blanco (283A) (no photo). Estimate $300 - 400.
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Realized: $375