OOSTERBAAN, K. Uitgegumd. Egmond a/d Hoef, (1991). Ohcl. bind., in which an eraser is visible under a perspex window in the front cover, also bound up a booklet w. or. pencil drawings. 8°. Printed in 35 copies only, signed by the artist -- Added: J. NIEMÖLLER. Eindelijk vrij/Endlich frei. (Hilversum), n.d. (1990?). 15; 26 pp. 2 booklets between 2 steel plates w. lettering on both sides, held together by 4 wing screws in each corner. Edition not stated. -- And 3 similar productions. (5).