Ursula Block – Edith Devaissier, author of the stylized signature – Nathalie Forget – René Block – Robert Piencikowski – Paul Sacher Foundation (Basle) – Dimitri Vicheney






Internet domain name:


Property: The present Internet site is published by the Association Ivan Wyschnegradsky, 106 boulevard Lefèvre, 93600 Aulnay-sous-Bois. All rights reserved.


Any unauthorized reproduction, even partial, of constituent elements of the website constitutes an infringement punishable by legal sanctions. The offender risks civil and penal sanctions, in particular the penalties provided for in articles L. 335.2 and L. 343.1 of the Intellectual Property code.


Editor in chief: Martine Joste


Photo credits: Charles Amirkhanian, René Block, Eric Legrand, Hans-Rudolf Roth, Paul Sacher Foundation


Hosting: Likuid Communications, M13714 BOUL. Curé-Labelle, CP 1063, Mirabel, Québec, Canada


Website design: Frédéric Bertrand



Association Ivan Wyschnegradsky - last update 2 march 2024