[The Philpott]

I got sticks of engraving wax in the mail from Trading Post in Shifnall, but it is arguably slightly too bright a white for this purpose. The surplus is removable with meths. The alternative i used on subsequent jobs was Revell Enamel model maker's paint, (i used an off-white colour closer to ivory) allowed to dry for a few minutes then wiped down with a rag soaked in Revell's own thinners. You can blend the white with another colour to dull it down depending on how old the meter is.

Both of these systems are a bit of a pain to remove from the crackle finish used on Avometers, so it's best to avoid getting them in there in the first place.

Dave