Hi I'm too sure what to say, theses are two very large charcoals I did a while ago. The first one is from an old Life Magazine article about the Savoy. It's 6'x6' paper mounted on board, I sold it and still regret it.
This one is 5'x3' I saw this portrait in a book about opera. Sorry the picture quality is a bit weird. I tried to lighten it some,it's very dark, and to get a decent pic I had to zoom in so the scale is off . It's also charcoal on paper mounted to wood.