John S. Barrington (aka John Paignton) was a pioneering pornographer and bisexual photographer of male ""physique"" images in postwar Britain. He was routinely harassed by British authorities and spent time in jail for publishing gay muscle magazines. He was also an accomplished artist and much of Barrington's artwork appeared in his numerous publications, such as the Art and Anthropometry series.
This is a pen and ink drawing on board of one of his favorite models "Tibor," who appeared in many of his publications. The lower right bears the letter "P" and the date of 1964 and the name "Tibor" appears at both the bottom right and left. There is considerable water staining at the edges but the image itself is not affected.