This charcoal sketch is one of three identical ones owned by Carola Keller. Tom Lidtke’s comments, this was drawn as an art school exercise in Munich: “… the sketch of the old lady is of a Munich model, Karl Von Marr has done the same drawing of the same lady in the same pose. Both Marr and Keller attended the Munich academy and are only 5 or  6 years apart in age.”