That is now even stranger .,
Just think about it : Exposed bare iron would have clearly rusted by now - 60 + years ... unless the paint came off yesterday ?! The surface has to be plated/coated - the covered iron core will still atract a magnet !
Now if it was just one coat of paint - with some components therin - contracted on that surface - seperated ? - and as can be seen - the rest of the paint did not bond well at all ... letting the paint to crumble/flake off over time .
Or if we have 2 separetly applied layers of paint .... which you think/indicated it is . The brown paint - lets asume is some kind of primer to make the black paint adhere to the surface !! .... Some reaction/incompatabilty of the 2 paints could have taken place . The black paint disolving the brown paint ??
this 2nd one is a more likely senario . .... as core -paint problems existed from day one .
"... silver surface ..." should have been 'silvery surface '... looking like silver , ...
Now looking at the picture : No rust shiny silvery surface - magnetic core :
Only 2 posibilities --- some Ni/aloy coated core ..... or even a sold Ni core .
Exposed ' ... raw iron ...' will and has to rust !! Generaly speaking - solid Ni cores exist and are rare ..., so I still think it is the common Ni plated core you got there .
Cheers Douglas
Just think about it : Exposed bare iron would have clearly rusted by now - 60 + years ... unless the paint came off yesterday ?! The surface has to be plated/coated - the covered iron core will still atract a magnet !
Now if it was just one coat of paint - with some components therin - contracted on that surface - seperated ? - and as can be seen - the rest of the paint did not bond well at all ... letting the paint to crumble/flake off over time .
Or if we have 2 separetly applied layers of paint .... which you think/indicated it is . The brown paint - lets asume is some kind of primer to make the black paint adhere to the surface !! .... Some reaction/incompatabilty of the 2 paints could have taken place . The black paint disolving the brown paint ??
this 2nd one is a more likely senario . .... as core -paint problems existed from day one .
"... silver surface ..." should have been 'silvery surface '... looking like silver , ...
Now looking at the picture : No rust shiny silvery surface - magnetic core :
Only 2 posibilities --- some Ni/aloy coated core ..... or even a sold Ni core .
Exposed ' ... raw iron ...' will and has to rust !! Generaly speaking - solid Ni cores exist and are rare ..., so I still think it is the common Ni plated core you got there .
Cheers Douglas
Comment