To clean - or not to clean ... ?

[aurelio]

Ok Thomas and thank-you for the pics, what a beauty!!!
For the keyes I suggest to clean them with water and soap: soak a cotton bud with the mix and clean all around them, holding the calculator upside, to avoid drops inside.
For the frame leave it "as is", if you like, you can print a Dymo label ('70 style )with HP35 v2 2.02 BUG and cover the left side of the frame.

Here, in Italy we say "eye does not see heart does not hurt", you will love it anyhow