2019, Roland Dejoux (France) |
2015, Barry Blyth (Australia) |
2012, Akira Horinaka (Japan) |
2011, Graeme Grosvenor (Australia) |
2010, Lech Komarnicki (Poland) |
2009, Hiroshi Shimizu (Japan) |
2008, Richard Cayeux (France) |
2007, Sidney Linnegar (Great Britain) |
2006, Susan Weber (Germany) |
2005, Italian Iris Society (Dr. Margaret Cameron Longo, Prof. Sergio Orsi, and Valeria Romoli |
2004, Milan Blazek (Chech Republic) |
2003, Berney Baughen (Great Britain) |
2002, Dr. Maria Antoinetta Colasante (Italy) |
2001, Brian Mathew (England) |
2000, Anne and Thomas Blanco White (England) |
1999, George Rodionenko (Russia) |