Hans’ ID badge collection:
2004 – Re:SPECT – Crew
DSE – Hamburg
2007 – WEF Davos
2008 – Re:SPECT, Duisburg
Dialog Museum – Frankfurt
2008 – Leadership Summit, New Delhi
DiD
DID
2008 – DID Israel
2008 – WEF Davos
2009 – AZI Alliance/DSE
2010 – TBF Pyrotec
2016 – Deutsche Pflegetag