Neat to see one after seeing the previou post about the patent.
You mentioned that you wanted to keep the tag from the guy that last serviced it and at first I thought "why?". Normally I would want to remove something like that. But on second look I see that it's a water-slide tag ... not paper. So yeah, I'd keep it. If it had been paper though I would have opted to remove it. How about you? Do you see those tags as preserving part of the machines history and therefore important??