Nuovo Record was never a group AFAIK. The NR rear changer first appeared in catalogue 15, and dissapeared by 17 (superseded by SR).
The only difference AFAIK between Record and SR hubs, is that the SR had a titanium axle. All other part #s correspond. I suspect that the same was true with the cranks.
I'll dig out the catalogue and check
nr still feature in catalog no 18