silverpoint

I recently bought the materials to make silverpoint drawings..silverpoint has been around since the renaissance, it is a method of using a silver pen (actual pure silver point) on a prepared ground. This is my first attempt at a silverpoint drawing, I copied a Leonardo drawing. I made three more drawings that will post later. S.P is very precise and I understand it changes color and ages with oxygen overtime...drawing is not great but it is more of an experiment than anything else.