In case anyone has a critical resto project in the works, there's a listing on San Diego CL for an NIB Campy NR group. Seller must have some inventory -- options are offered, such as 170 or 172.5. Bring a big pile of money.
I glanced very briefly -- I think the calipers were block script with later dimpled QR levers.
No connection.
Cheers,
Peter Bridge
san diego ca usa