Half length portrait of a man with a pinfeather looking up, Matthias Grünewald

In the past often regarded as a self-portrait of grünewald, but according to the most recent research rather a study of the writing john the evangelist on patmos. Date: circa between 1512 and 1516. Dimensions: height: 20.8 cm (8.1 in); width: 15 cm (5.9 in). Medium: chalk on paper, charcoal on paper. Mathiasgruenewald