Issued in 1967, this 2 Schilling commemorative stamp celebrates the Kongress der Internationalen Messen in Wien (Congress of International Trade Fairs in Vienna). Designed by O. Zeiller, it depicts the grand Wiener Messepalast (Vienna Trade Fair Palace), a hub of global commerce and innovation. The emblem of the World Union of Fairs (WM) featuring Mercury, the Roman god of trade, appears at the upper left, symbolizing international exchange and progress. Printed in deep sepia tones, the design highlights Austria’s postwar resurgence as a European trade center.