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

Croatia - Semi - Postal issues

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Start price: $150

Buyer's premium:

1944, Aid for Postal and Railway Employees, 7+3.50k – 32+16k, complete set of four in sheets of nine, in addition imperforate proof sheets for each value, full OG, NH, VF and scarce, Est. $300-$400, Scott #B52-55