Worldwide Air Post Stamps and Postal History, Philatelic Rarities of the World, Part 1

Canada - Officially Sealed stamps

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Start price: $600

Buyer's premium:

Description

1879, Dead Letter Office, light brown shade, top sheet margin block of four with B.A.B.N. imprint, some perf separation in the middle, full OG, NH (hinged only in selvage), fine and rare multiple, V. Greene certificate, Unitrade C.v. CAD$3,000, w/o 3x premium for plate block, Est. $1,200-$1,500, Scott #OX1