Gemeinde Wien - Städtische Straßenbahnen: Ticket of Vienna's Tram  
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This seems to be a special ticket. The red text under the ticket number reads:
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Nur giltig mit Erkennungskarte! (Valid with identification card only!) 
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The validity of this ticket ended in April 1923. 
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Scan by eisen.bahner

# eisen.bahner@gmx.at