Lot 51625 – SOVIET UNION 1923-1924 UNISSUED AIR MAIL 5R proof type with wide ‘5’, hinged, very rare

1923-1924 UNISSUED AIRMAILS 5R type II (proof type) with wide 5, on quite thin transparent paper, at bottom, gum missing due to negligent gum brushing, diagonal gum crease, frontside with large even margins allaround and very fine, a very rare adhesive (apparently only 50 were printed), signed Sov.Phil., cert. Zagorskiy, Mi XVIIxII €50’000 for hinged, Standard 011II €48’750, Zverev & Gilmanov $50’000, Liapin 2010 AH18 50000.-