The Famous Unissued Airmail Without Surcharge 1924 Airs 5R green type II printing: wide ‘5’ and thick S.S.S.R inscription, unissued, without surcharge, practically mint never hinged, a very fine example of this great airmail rarity, cert. by Nikolai Mandrovski (Mi no. XVII/II, €50'000 for hinged, Standard 011 II, €48'750 for hinged, Zverev & Gilmanov 59, €75'000 for never hinged, Liapin AH18, €80'000 for never hinged)
http://ift.tt/2sFjyPF
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