Need some help cleaning this plate

[Newt]

I found this thing bottle digging a few weeks back. I'm pretty sure it's LEAD.
Newt

 

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[Newt]

It's a butcher supply advertising plate.
Is there some chemical I can soak it in to get rid of the rust? Other than CLR.
Newt

 

[Hill Billy]

How about trying some Naval Jelly.

 

[Newt]

I've been digging for some since your post. All I've found was lint. I must be doing it wrong.


Just kidding of course.
Newt

 

[Hill Billy]

You must be in the wrong hole

 

[Newt]

Oh yeah. I was.
Newt