Ambigram ¡OHO! and reversible figures drawn by Rex Whistler, 1946, up and down, Rex Whistler

Ambigram ¡oho! and drawing of reversible male faces by rex whistler, 1946 (but created before since the artist was dead in 1944). 180° rotational symmetry. Title of the book: certain two-faced individuals now exposed by the bodley head. Publisher: the bodley head, john lane, london. Publication date: 1946. Date: published in 1946, created before 1944.