@enzo, first of all I have to say salute to your work. It must be a lot of research and testing.
My question is on the technique of applying the varnish. How can u apply the varnish on selective areas such as the tip of the number 1 is brown but the rest is yellow. I was thinking that you apply different shades of varnish at different times to produce such an effect. Is that the case?
I have seen dials like this on two gens. After u reminded us about radium, I thought I was lucky enough not to ask the shopkeeper to take those 2 gen out for me to put it on my hand...but they r nice