AUSTRIA, 1933, 50g WIPA Souvenir Sheet, Granite Paper (B111; Michel Block 1).
Affixed and tied to original presentation folder by red "Flaschenpost" Jul. 31, 1933 circular datestamps, additionally cancelled by Jul. 7 Exhibition postmarks at bottom, also with three other Austrian stamps tied by different 1933 or 1934 cancels, Very Fine, catalogued as used souvenir sheet, Michel €3,000
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