Forgery: The white lines in the background around the head are thick, straight, and rather irregularly spaced. Thick, dark shading completely outlines the head and is especially visible on the face. They are lithographed. Genuine: The background behind the head is composed of regular, thin, engine-turned, curved lines forming a beautifully symmetrical design. There is no thick shading around the head. They are engraved perf 12.