john-murray1:
9 T First Variant -Darker in colour -Teeth length longer and narrower -Bushing thinner and larger inner hole
john-murray1:
9 T Second Variant -Lighter in colour -Teeth length shorter similar to the later 10T Pulley wheel -Bushing is brass with smaller hole
john-murray1:
No Logo jockey wheel 1968, first of the 10T jockey wheels
john-murray1:
Two versions of the stampings on the 10T Pulley Wheels left from right •10 Tooth Pulley Wheel CAMPAGNOLO BREV. INT. 1968 – 1971 •10 Tooth Pulley Wheel CAMPAGNOLO ITALY 1972 - 1985/87
john-murray1:
Campagnolo Jockey wheels circa 1963 - 1985