Tar-like residue
Whatever it is, it's resistant to everything that I dare to put down the barrel!
I think the barrel might be some kind of damast, which is why I would not like to use aggressive chemicals.
Photos now inserted. Unfortunately the software limitation means that I cannot post the picture of the barrel with adequate resolution to show up the wavy patterning. Just use your imagination!
Last edited by SchildaBrit; 2nd April 2021 at 06:49 PM.
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