The Austria Centre in Vienna is to host a major international stamp collectors fair, with 430 exhibitors from around the world, 24 philatelic work groups, 88 stamp dealers and 40 international postal administrations. Held from 18-21 September, the WIPA (Wiener Internationale Postwertzeichen Ausstellung) fair will feature top rarities including the most valuable stamp of the post-war period, the so-called Audrey Hepburn stamp, and the red and blue Mauritius stamps on the

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