Original lithograph. Printed in Paris in 1938 for the very rare XXe Siecle (issue No. 4). Size: 12 1/2 x 9 3/4 inches (320 x 248 mm). Not signed.
Condition: there are pinholes from the publisher's original binding along the left edge and some creasing.
Serigraph (after the study for a painting). Printed in Germany in 1978 and published by Bottrop for a scarce catalogue. The full sheet size is 8 1/4 x 8 1/4 inches (208 x 207 mm). There is printed text on verso, as issued. Not signed.
Medium: lithograph (after the original Max Bill composition). Printed in 1956 on thin wove paper and published in Stockholm for a Swedish survey of Concrete Art. Size: 10 1/2 x 7 3/8 inches (270 x 188 mm). Signed in the plate, not by hand.Condition: there is age-toning and soiling to the paper.