Unfortunately, I've learned that the "incandescent" setting on my camera is basically just insufficient. I have a hard time correcting for that kind of a WB slip-up in Photoshop (although I didn't try it in Lightroom, which I think might do a better job), so when I revisit this, and do another shoot of the fountain pen, I'll probably just shoot it with a more neutral light color.
click to enlarge, or see it on Flickr
Shutter Speed: 1 second
Also, I'll probably clean the bottle (especially the dusty lid) and pen thoroughly first. I keep forgetting that macro shots expose details regardless of how unpleasant they are.
So a somewhat disappointing shot, but I'm armed to get it right next time.