Seth Cole vellum drafting paper rolls, pads, sheets. Vellum is a medium-weight 16 lb. basis drawing paper manufactured from 100% new cotton rag fibers with a non-fading blue-white tint. Finely-grained surface that is excellent for pencil and pen receptivity. Seth Cole tracing paper advantages include: leave no ghosts, smudges, or smears when erasing; high tensile strength prevents tears; resists aging and yellowing. Similar to Clearprint and Alvin vellum. Seth Cole vellum drafting papers are made in the USA.