3 original graphic works by H. Mack (U. Mack 33), O. Piene, and G. Uecker (embossing). Each 63.5 x 53.5 cm and 53.5 x 63.5 cm resp. All works signed and dated and partially numbered. Numbered 44/250. With original card portfolio and paperback leaflet in linen union slipcase. Edition Kestnergesellschaft, Hanover. - Minor traces of age.