Oh, one other thing.
The paint used on wartime dials to mark the figures and graduations is radium paint and is, basically speaking, radioactive. You should wear gloves when cleaning them and, although the radiation is the 'heavy' alpha type, it can still cause problems should it remain on your skin or be inadvertently digested. Thick glass will shield anyone from the radiation so please don't leave it out anywhere......get it in a cabinet behind glass !
Cheers
Steve T
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