Maybe I'm wrong, but when Willi Cicci kills Cuneo I think I saw a mustache. I remember reading Donnie Brasco, and right after Lefty told "Donnie" he'd be his guy that represent that'd Donnie would have to lose the facial hair.

"When my time comes, tell me, will I stand up?"
Paulie "Walnuts" Gaultiere - The Sopranos