Collectors Club – April 7, 2021 Philately & International Mail Order Fraud Edward Grabowski – Philately & International Mail Order Fraud: The Success of the New York Institute of Science in Hungary

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Philately & International Mail Order Fraud: The Success of the New York Institute of Science in Hungary, which was published in OPUS XVIII of the European Academy of Philately in its volume on Austro-Hungarian philately, should proceed to the web site of the Society for Hungarian Philately