As stated many times previously on this blog, silverpoint is a drawing medium that was used extensively during the Renaissance era; pre-graphite pencil. The drawing surface must be specially prepared to allow for the slight abrasion of the silver. The metallic lines that are left will gradually tarnish (oxidize) to a sepia tone.
I prepare my panels and fine papers with various tints of color: ocher, blue-gray, salmon-pink, green-gray and lavender. Please see other silverpoint drawings that have been posted here. Or, visit my website to see a broader range of work in silverpoint and my other mediums.