Wiktionary
feather pen
n. A quill.
Usage examples of "feather pen".
I dipped a feather pen into a pot of ink made from nightshade berries.
Peter, who had materialized in front of me, a white feather pen tucked behind his ear.
Good notepaper was the problem, since the Turkish stuff fine enough for handwriting tended to be expensive, and the newsprint of the time turned into a blotched rag if you wrote on it with anything harder than a feather pen.
A few animated posters hung on the walls, but there was also a lot of static graffiti done up in plain ink, and the reason for this was quickly apparent: each table had a big feather pen stuck prominently into a built-in inkwell.