Price: $180.00 Illustration Original, Pencil on Tracing paper, 12.75 in. wide x 18.625 in. high, ready for framing, Drawing by Ahde Lahti. This is a set sketch for a rental company, RAC. It is pencil on tracing paper. The sketch is then scanned into Photoshop where it can be manipulated. This shows the plan, elevations and perspective.