These are like buses...
Look what I have found in the parts bin - Pat.75 so 1975 for the Nuovo Record rear derailleur, not sure how to date the front derailleur:
@Vince started
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These are like buses...
Look what I have found in the parts bin - Pat.75 so 1975 for the Nuovo Record rear derailleur, not sure how to date the front derailleur: