Not sure about the black.. but see this thread.
http://www.914world.com/bbs2/index.php?showtopic=77443I'm still unclear on how available or unavailable, the proper brown is but I'm being told it's getting real hard to find, maybe it's even being replaced by black?
Anyhow, here is the part # for the brown paper 60mm
911 211 522 00
Ferg