Gold bug 2 coil (possible concern)

[LRC253]

I bought a used gold bug 2 and didn't know too much about it. I used it with the coil cover on and took it off to clean it for the first time and noticed its abnormally spotted and has a few tiny pin holes... I'm assuming this isn't normal but hoping it is. The detector seemed to be working ok. Thoughts??

 

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[LRC253]

I think I posed in the wrong section - I'm going to repost elsewhere.

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