Jiri Valoch. Drawing 23, and One or two exercise(s)

(1) Drawing 23, 1978. Original typo poem showing a vertical line with repetitive numbers. Typewriting on wove white paper, 29 x 21 cm. Rear shows pencil written title 'drawing 23' in lower left margin, signed 'Jiri Valoch 1978' in lower right margin. Small irregularity (1.5 cm) to top edge, minor paper toning to lower edge; otherwise a very good copy.

(2) One or two exercise(s). Off-white sheet, folded in 4 sections, with printed typed text in black. Signed 'Jiri Valoch 1983' in pencil in lower margin. Texts in separate sections in both Czsechoslovakian and English read: 'one or two exercise(s)'; 'the moment when day ceases to be day and begins to be night'; 'the moment when night ceases to be night and begins to be day'. Excellent copy. (total 2)