VINTAGE 1976-77 FLUTED CAMPAGNOLO PATRNT NUOVO RECORD 170mm 50/45 TOOTH CHAINRINGS CRANKSET — DRIVESIDE DATE STAMP. OR 1977 and NON-DRIVE SIDE DATE STAMP. OR 1976 — 144 Bolt Circle Diameter — Good used condition!!! — includes PATENT chainring bolts and dust caps and crank bolts — Removal threads and pedal threads are both in great undamaged condition. Please refer to…