19:45-21:55, September 9th, 1967, Frankfurt Germany

Frankfurt, Galerie Dorothea Loehr, 1967. 30.5 x 21.5 cm, 20 pp. Catalogue of the significant conceptual art show - a two hour group exhibition- conceived by Paul Maenz.

Includes ephemeral projects by Jan Dibbets (his first 'perspective correction'), Barry Flanagan, Bernhard Höke, John Johnson, Richard Long, Konrad Fischer, C.H. Posenenske, Peter Roehr. Cover bears the edition number 462/500, stamped in blue. Some browning and smudging on cover, else good. Very scarce.