Lot
3155 
(Exposition) Buffalo International Fair, Secretary's Office, orange illustrated corner card cover showing Main Exposition Building, franked with 1887, 1¢ ultramarine pair tied by "Buffalo, N.Y., Aug 28, 88" duplex postmarks, receiving backstamp; cover slightly reduced at right, Very Fine and choice, extremely rare as Bomar states there is no known advertising covers for this exposition, quite possibly unique. Scott No. 212 Estimate $200 - 300.
Realized: $160