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@rive_gauche
looks like nuovo record > http://velobase.com/ViewComponent.aspx?ID=5DA356F4-3D31-4395-BDAF-190893AFB431&Enum=115&AbsPos=31 <
so give their recommendation a go [disclaimer: finding the right bb axle length can be a very trial and error affair]
to quote:
The pre-1978 cranks used a 112mm axle (68mm BB) or 113mm axle (70mm BB). 1978 onwards, Campy changed the design of their cranks slightly to incorporate a wider front derailleur and therefore also changed their bottom bracket axle lengths. 1978 and onwards required a 114.5mm axle (68mm BB) or 115.5mm axle (70mm BB. These axles should have +1 and +1.5 engraved on the axle itself (not always?). To confuse things further, I think they may have also continued to sell the original length axles for some years after the introduction of the new axle lengths. I hope this helps you find the matching BB for your crankset
So Campagnolo were also muddying the water