Originally Posted by
noglider
You can sand down the submerged section and leave the exposed section unscathed.
Thought about this. Or even sanding the whole thing down, then using gun bluing to dye it, then polish maybe?
But at that point, I started thinking about the hours of work I'd put into it and decided there must be an out-of-the-box solution to this issue. Certainly, Cinelli must've made black french-sized quill stems?
Edit: Actually, it looks like Kalloy may've even made them:
https://www.ebay.com/itm/124083311111