RENOIR Pierre-Auguste (1841-1919) Autograph letter signed addressed to Arsène ALEXANDRE La Rochelle, June 18, 1890, 1 page in-8 in ink. (Margins effrangées). Autograph letter signed by Renoir addressed to Arsène Alexandre (1859-1937) who will become his critic and nevertheless friend. "I have noticed for a long time that without knowing me, you generously take my defence every time the opportunity presents itself. I noticed it in connection with an exhibition at Durand-Ruel [...]".