What I seek are 4mm ID by 5mm OD thin metal ferrules for old style wound deraileur cable housing. Huret in this case for my Paramount with Twinn Stick Huret/Schwinn shifters and Campagnolo down tube cable stop. Yes I know many would use lined brake cable housing in this case but I'd like to stay pretty vintage here. The Campagnolo housing at the rear deraileur has them, but I can't find a Campy number for them. I just lost an auction for some I thought might work. The search continues. Thanks for the assistance.

Brian