1975 - « مائتا رسام بلجيكي شاب مستعدون لتبادل لوحاتهم »

In June 1975, an unreferenced newspaper announced the event in a large illustrated article: "From 14 June to 30 August, we shall return to the age of barter at Château Malou in Woluwe-Saint-Lambert: two hundred young Belgian painters will exchange their canvases for any object. From the old oil lamp to the superb villa."

The exhibition is described as "unquestionably the largest group Salon ever organised in Belgium", all the artists having been "carefully selected by a jury".

The principle is explained: "Because money isn't everything, and it is desirable to be able to exchange an object one truly loves for a painting one truly loves. That way, a work of art is not tied to a notion of money. It is a sort of contract between artist and buyer: what one loves against what one loves."

المصادر: Coupure de presse, juin 1975 - journal non référencé