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

British Commonwealth - Sudan - Postage Due stamps

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Start price: $200

Buyer's premium:

1979, Gunboat ”Zefir”, 10m red lilac and green, 20m red and ultramarine, complete set in blocks of four, printed on Sudan Arms (Rhinoceros) watermarked paper, full OG, NH, VF and rare multiples, which are not priced in Scott or SG, Est. $400-$500, Scott #J14a-15a