In hopes of springing Spring . . . here is a PIF (with postage included) for a Baoer 516 with a custom-ground steel nib. It was originally described as a stub but this nib seems to be finer than that, and it delivers noticeable feedback. I believe that the body of this pen is black lacquer over brass, which makes it feel substantial. The nib and trim are silver-colored. The pen measures 5 1/2" with its snap-on cap, and 4 3/4" when it's uncapped. It comes with a Baoer (piston-style) converter. A few photos are included.
I have used this Baoer for several months and it's a fun writer, but I need to make some room in my pen box for a few new experiments. So if this pen sounds like something you would like to try out, reply to this thread before the end of this month. I will collect the replies and draw one out of the hat (a handsome fedora) on February 28th and post the winner here. Good luck everyone!