Cleaning cast iron precision level

[made2hack]

Hi all,

I've recently acquired this New Old Stock precision level square that is covered I guess with the original wax from 20 - 30 years ago. How would you go about cleaning this tool?

Should I first mechanically remove as much was as possible with like a wooden stick and then clean everything with acetone?

Once I get a good clean surface, should I then oil everything right away?

Thanks,



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