Very clever. thanks for taking the time to clarify. I would never have thought of that myself. Simply to reduce the number of times needed to duplicate the image, would it not be useful to scan in an image of the IP face, at the same magnification as your image. Then take a photo of the illustration at approximately the same distance to produce your dials at approximately the same or similar scale. Might then need to reproduce larger and smaller increments of the dial images at increments of say 5 or 10% incremental changes until best fit is found. Same end result, just matching product to its destination so to speak.....