Diatom

68 Entries
Displaying 1 – 60
1st
2013

Wim van Egmond
1st
2008

Michael Stringer
1st
1983

Elieen Roux
2nd
2006

Raul Gonzalez
3rd
2002

Wim van Egmond
4th
2007

Charles Krebs
8th
1983

Du Boistesselin
10th
2009

Arlene Wechezak
11th
2008

Wim van Egmond
11th
1995

Rudolph Rothermel
13th
1993

William West
14th
2008

Charles Krebs
14th
1980

Martin Zloty
15th
2021

Bernard Allard
17th
2006

Harold Taylor
17th
2003

Peter Webber
19th
2020

Jan Michels
20th
2005

Oliver Skibbe
HM
2022

Jan Rosenboom
HM
2021

Wim van Egmond
HM
2019

Jan van IJken
HM
2005

Stephen Nagy
HM
1996

Brian Wysor
HM
1992

William West
HM
1989

Dan Coan
IOD
2023

Michael Landgrebe
IOD
2023

Jan Rosenboom
IOD
2022

Stephen Nagy
IOD
2021

Michael Landgrebe
IOD
2020

Charles Krebs
IOD
2020

Ken Schwarz, et al.
IOD
2019

Larry Gouliard
IOD
2018

Wim van Egmond
IOD
2016

Frank Fox
IOD
2016

Arlene Wechezak
IOD
2014

Christian Gautier
IOD
2013

Arturo Agostino
IOD
2013

Peter Woitschikowski
IOD
2012

Piotr Rotkiewicz
IOD
2012

Wolfgang Bettighofer
IOD
2012

Wolfgang Bettighofer
IOD
2012

Massimo Brizzi
IOD
2012

Victor Chepurnov
IOD
2012

Frank Fox
IOD
2010

Robert Lavigne
IOD
2010

Stephen Nagy
IOD
2010

Michael Stringer
IOD
2009

Karl Bruun
IOD
2009

Matthias Burba
IOD
2009

Sharyn Hedrick
IOD
2009

Gregor Overney
IOD
2009

Arlene Wechezak
IOD
2008

Jan Michels, et al.
IOD
2008

Arlene Wechezak
IOD
2008

José Almodóvar
IOD
2008

Appie Bonis
IOD
2008

Matthias Burba
IOD
2008

Sharyn Hedrick
IOD
2007

Stephen Nagy
IOD
2007

Robert C. Berdan
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