Woody, There are laser based (non-contact) tracers on the market. We have a Romer Arm at work (day job) made by Hexagon Metrology. There are other manufacturers as well. Ours is sensitive enough to read the varying thickness of the ink on stickers. The real life downside of this is they will pick up every little knick and ding in the old stock. Unless you want them replicated as well, yby Kehlhof Rustics - Handibot Forum