1923 Kotchar’s first one-man show, organised by Arshak Chopanian, opens in the hall of the “Apaga” newspaper.
1924 Particapate in the “Salon des Independants” exhibition with the canvases “Resurrection” and ” Metamorphosis” which attract the attention of prominent
Participates in the “Salon d’ Autome” exhbition with the works “Vision:Christ and Mary Magdalene”, “Bacchus” and ” Portrait of a Girl”. These works were echoed broadly in publications of Cleman Morauz, Raimon Ceiling and Jules de Saint Guiller.
1925 Particapate in “Lart d’ Aujourd’hui” international exhibition together with Harp, Brancussi, Delone, Earnst, Grisse, Clei, Leger, Lipschitz, Miraux, Modrianne, Ozanfan, Picasso and others.
1926 Particapate in the exhibition organized by “Salon des Independants” with the canvases”Portrait of a girl” and “The Houri with Fruits”.
The one man- show of Kotchar’s paintings and graphic works was opened in ” La Sacre du Printemp” Gallery.
1928 The “Les Pentures dan l’espace de Kotchar one-man show opens in “Van Leer” Gallery. The author of catalogue was valdemar George.
1929 In the interbational exhibition, “Panorma de L’art contemporain” organized in the halls of the “BONAPART” publishers, Kotchar presents works of “painting in space”.
1930 Participates in the exhibitions, “Confronation” at the “FenUtre ouverte” Gallery.
The exhibition ” Pictures by Fernand Leger, Gino Severini, Jean Metzinger, Jean Viollier also Ervand Kochar’s Painting in Space” opens in “The Leicester Galleries in London”.
1932 Participates in the exhibition, “Exposition d’ oeuvres Cubites, Surealistes et Abstraites” in Leonse Rosenberg’s Gallery, presenting also works by Braque, Metzenge, de Cirico, Gries, Picabia, Kzaki, Leger, Earnst and others.
1934 The one-man show, “Kotchar – Peintures, Sculptures, Dessingns” opens in “Galerie Vignon”.
1935 Participates in the exhibition, ” Les Artistes Musicalistes” : Budapest, Brno, Prague, organiser was Henry Valencie.
Participates with one work , “Painting in Space “, in the exhibition “Le 1-ere Salon de l’Art Mural” where only “models related to monumental art” were presented.