(Basel 1930-2017) Color sound 15 margin intro version, 1973, titled, inscribed, dated and signed Karl Gerstner 3. V. 73 on the reverse, nitrocellulose lacquer relief on phenolic resin panels on wood, 114 x 114.5 cm
(Weißenstein/Drau 1928-1985 Lengenfeld) \"Formen in den Raum ragend auf Gelb\", 1955, according to label on reverse, signed Joh. Fruh. on the reverse, oil on burlap, 50.5 x 72 cm, framed