- 1985 France Pierre Marly Collection (Avenue Mozart, Paris)
- 1990 Germany Oberkochen & Hannover
- 1992 Italy Treviso, Pieve di Cadore, Agordo, Venice
- 1993 Germany Hannover, Wienhausen, Rathenow, Jena
- 1994 France Pierre Marly Collection (Rue St. Honoré, Paris)
- 1995 Netherlands Gouda, Utrecht,. Rotterdam, Einhoven
- 1996 Sweden Stockholm, Uppsala
- 1997 Switzerland Geneva, Morez, Bern, St.Urban, Basel
- 1998 Italy Treviso, Padua, Pieve di Cadore, Agordo, Venice
- 1999 Germany Nuremberg, Oberkochen
- 2000 Germany Hannover, Wienhausen
- 2001 Scotland Ronald MacGregor Collection and Edinburgh
- 2002 Netherlands Amsterdam, Bergen-op-Zoom, Haarlem
- 2003 France & Switzerland Morez, Geneva
- 2004 Germany Jena, Weimar, Wartburg
- 2005 Germany Hannover, Wienhausen, Luneburg
- 2006 Italy Padua, Agordo, Pieve di Cadore, Venice
- 2007 London 25th Anniversary Celebration
- 2008 Switzerland Basel, Zurich, St. Urban, Bern
- 2009 Germany Wuppertal, Cologne, Bruhl, Gelden
- 2010 Netherlands Amsterdam, Leiden, Utrecht
- 2011 Germany Hannover
- 2012 Germany Jena
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