Self-portrait in a mirror...
Interesting quote by Ben Shahn from A Guide To Drawing by Mendelowitz and Wakeham, p. 326:
Self-portrait in a mirror...
Portrait from a photo...
We took turns posing this week...
This is a contour drawing, by the the model, of the drawers drawing. 
Preston posing...
Evelyn's self-portrait in a mirror...
A contour drawing with very interesting buttons that look like skulls:
