Mk2 reflector gunsights and fluorescent markings ?

Just a thought……

Has anyone ever check to see if the numerical marking on a MK2 reflector gunsight are fluorescent? These are the range markings that you set with the dials etc

If so, is it likely to be radioactive in a similar way to the old aero clocks that were discussed a while ago?

Similar coloured paint is also on a Seahawk control column top that I own.

Most of my collection is in store and not on display (including the WW1 compass that I know is quite radioactive, but doesn’t glow after all these years), but it would be nice to know if any has ever checked with a Geiger counter etc

Thanks