APPEL, K. Sculptures. Receuil dir. p. E. Gribaudo. (1962). 4°-obl. Ocl. w. dust-j. In or. slipcase. -- Id. A sunny day with loving car. (Mercedes, 1986). Lge-4°. Ocl. Printed in 700 numb. copies. -- Id. Eloge de la folie. (1977). Owrps. Signed in pencil by the artist on the front side. -- Id. Nudes/Nus. (1963). 4°. W. or. lithogr. cover. -- And 2 o. (6).