decorated envelope for Snails & Clowns mail-art project

There is a French mail-art project, "Les Clowns - Les Escargots," to which I contributed a decorated envelope which you can see at http://2.bp.blogspot.com/_-i92WuVoRi4/R3OSk_6pNLI/AAAAAAAACYI/rKHP_AZyKmo/s1600-h/DANIEL+CHEVALIER+1+2007.jpg .