M. C. Escher

M. C. Escher

1898 - 1972

Convex and Concave (Bool 399)

signed in pencil, inscribed IV and numbered 52/56

lithograph on Van Gelder wove paper

image: 11 by 13¼ in. 280 by 335 mm.

sheet: 16⅝ by 18¾ in. 422 by 478 mm.

Executed in 1955; this impression is number 52 from the edition of 56.