In the early 1980s the Bern based Galerie Lydia Megert produced multifunctional invitation cards on folded A3 paper. Besides the basic information on when and where the exhibitions would take place, the leaflets also contained pictures of the artists and their artworks as well as biographical overviews and short texts.
The little circles suggest that all the sheets could be punched and collected in a folder (maybe similar to Harald Szeemanns catalogs When Attitudes Become Form, 1969, and documenta 5, 1972). This way, the invitation cards could function as single pages of a potential publication documenting the history of Galerie Lydia Megert.