How are contracts signed at bauma? Leopold Poyss, Managing Director of Poyss, bought two Caterpillar machines at bauma – he has been a loyal Zeppelin customer for 30 years and now owns a total of 90 Zeppelin machines. Wow! The deal was not closed on a white sheet of paper, but on a beer mat. Günter Vollman, Zeppelin Branch Manager Vienna, shows us what this special beer mat contract looks like!