I just received a pair of vinage Campy quick release skewers that I need for a vintage Campy-hubbed wheelset that should be coming soon. The non-lever end of the skewer has me wondering. It is cone-shaped with an integral knurled ring half-way up the cone. The large end of the cone says "Patent Campagnolo." There is no D-ring. Can anyone tell me the vintage of these?
Thanks,
Pete Rutledge
Woodbridge, VA