Originally Posted by
Nessism
No anodizing? That's odd. The stem will tarnish quickly without some sort of protection, or constant attention to cleaning.
.......
I've done similar light sanding and polishing to a GB stem, and it has held up well for 20 years with just a few interim polishings over that time.
It looks much better now, and I have had no issues with it.
Steve in Peoria