F.l.t.r: Ortvad (Høst), Constant, Else Alfelt (Høst) and Corneille at the Henri Polaklaan 25, Amsterdam, November 1949.

A gathering of the members of the Høst group and De Experimentele Groep in Holland, most likely in preparation for the exhibition Internationale Tentoonstelling van Experimentele Kunst at the Stedelijk Museum in November of that year. On the wall, partly visible, is Constant's painting "Witte vogel", 1948. Constant was secretary of De Experimentele Groep in Holland and his living room often the head quarters for the meetings.

The experimental artists arriving at the Stedelijk Museum in Amsterdam with their work for the Cobra exhibition from November 3 until 16, 1949

Amsterdam, circa 1949

Victor and Constant at home at the Henri Polaklaan 25, Amsterdam, 1949. Paintings and drawings by Constant hang on the wall, from left to right the goache Barricade (II), 1950 and three unknown works which might have been destroyed by Constant himself.

Constant, Appel and Corneille at their exhibition at gallery Santee Landweer, Amsterdam from February 14 till March 4th, 1948.

Constant, Corneille and Appel in studio Karel Appel in Amsterdam, 1948

De Experimentele Groep at the studio of Karel Appel in Amsterdam, 1948.
Standing f.l.t.r.: Anton Rooskens, Jan Nieuwenhuijs, Eugène Brands, Karel Appel, Theo Wolvecamp
Sitting f.l.t.r.: Corneille, Gerrit Kouwenaar, Jan Elburg and Constant playing guitar.

De Experimentele Groep in Holland (The Experimental Group in Holland) in the studio of Karel Appel in Amsterdam, Autumn 1948.
Back row f.l.t.r.: Karel Appel, Jan Elburg and Gerrit Kouwenaar;
front row f.l.t.r.: Theo Wolvecamp, Corneille (chairman), Constant (secretary), Jan Nieuwenhuys, Eugène Brands and Anton Rooskens (treasurer).