The stem exceeded my ability to clean a stem, got a replacement stem from smoking pipes.com
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I had some original Preben Holm pipes and a Viggo Nielsen that came with stems like this, and they were from the 70s or so, very oxydized.
Same thing with some Charatan's, etc.
I ended up working on them until they got to where I needed them to be. It all depends on whether you want OG stems or not.
If you're ever looking for some direction on how to restore stuff, I'd be happy to help.
I did write a small tutorial on how I restore pipes a long time ago, although I think I left the stem restoration part out of it since it seemed to me that it was the most common knowledge part of restorations, but, if it's worth writing something up, I can make a post about it.
