Re: Model A Frame VIN
I recently went through the same process. I used the water-based metal cleaner from the Eastwood company applied vigorously with a wash cloth. Then I still couldn't see the numbers until I used a drop light from many different angles, stopping at each angle and staring for a minute or so. Eventually I found the right angle and could make out the numbers.
I've used the acid method at the State police forensic lab to bring back filed off serial no.s on weapons. It definately works, however, you likely will end up with a concave "dent" in your frame. It is not very deep, but something to think about prior to using it.
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