In the Jihlava gallery, Jan Kotík exhibited in 1965, at a time when the gallery was laying the foundations for their profile as a regional gallery, one part of which will be devoted to progressive contemporary art. Otakar Máčel participated in the exhibition on behalf of the gallery, the texts for the exhibition and the catalog, and most probably also the concept of the exhibition itself, are the work of art historian Ludmila Vachtová. Correspondence between Jan Kotík and Otakar Máčel, photographs of the exhibition and the accompanying catalog are documented in the OGV archive.