65c-$2.60 Graf Zeppelins (C13-C15).
48 Plate No. Blocks of Six Constituting A Complete Set of All Plate Numbers and Positions For the Three Values, Nicely Centered Throughout, Virtually All Mint, some natural gum skips and bends to be expected, A Fabulous Offering Which Took The Owner Over Twenty Years to Assemble, Probably Unique
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