Most of the postcards(over 50) designed by Emil Ranzenhofer depicted WWI scenes. They were published by either the Bruders Kohn (B.K.W.I.) or by the B.K.W.I. Offizielle Karte Fur: Rotes Kreuz, Kriegsfursorgeamt Kriegshilfsburo. At least eight of these postcards were in a series featuring the dog performing a variety of functions during WWI. This series was a set published by theZu Gunsten Des K.U.K. Kriegsfürsorgeamtes; K.F.A. Sanitätshunde.