It's not chrome, it's painted. And unfortunately I can't weld. Tried it once in college architecture school, but never really went anywhere with it. Wish I would have learned more.
The frame is a 2008 (I think) Marin Pine Mountain frame, and it's really nice. Disc only, for 26" wheels, and derailleur cable routing along the down tube. I really, really wanted to use this frame.
However, looking at it more and taking measurements off my other bike, I'm starting to think the frame may actually be too big for me. I feel like my yellow bike is too small, which is about 16.5 to 17" from BB to center of top tube. This frame is 20" BB to TT, and the top tube itself is about 2-3" longer than the yellow bike.