Bill Nelson “ Richard ” Charcoal 18 ” x 24 ” Fall 2003. Bill Nelson “ Older woman ” Charcoal 18 ” x 24 ” Fall 2003. Untitled Conte 21 ” x15 ” 1996. Back Study 10/08 conte and charcoal on brown paper 18 ” x24 ”. Back study #2 10/08 Charcoal on Paper 18x20 ”. - PowerPoint PPT Presentation