I hear what you're saying. I think someone put something on this machine later. I don't think this is all original. After I posted the message above I used the dremel and a plastic type brush on the decals on the back along with lots of oil. I worked on this a long time with the dremel, and you can still barely see them. Definitely no silvering because there's so much on top of the decals. If I use a t shirt or cotton swab and oil, I get nothing off. I can rub and rub and rub for however long, 5 minutes, etc. and I get nothing on the rag / q tip. I wonder if this is laquer.