Maurits Cornelis Escher
Convex and Concave (Bool 399), Executed in 1955
lithograph
11 by 13 in.
28 by 33.2 cm.
16 陆 by 18 鈪 in.
42.1 by 47.4 cm.
Signed, number 42 from the edition of 56
lithograph
11 by 13 in.
28 by 33.2 cm.
16 陆 by 18 鈪 in.
42.1 by 47.4 cm.
Signed, number 42 from the edition of 56