I picked up this KVK-1st. Iis there any way to identify the maker ? I don't see any numbers or markings on the badge or pin. Also, it is a grey/black color, does that indicated it has lost all it's finish, or did it just go to patina? It is not magnetic so I was also wondering if I put some vaseline on it for a while whether that would help it.
Thanks
Pat
Thanks
Pat
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