Campagnolo Record - threaded headset - 1" (25.4 mm) x 24 TPI English thread - hardened steel construction - chrome plated finish - 3/16" or 4.7625 mm ball bearings with SKF metal retainers (...40 count total at 20 each upper and lower) - post 1971 with channel inset marked "BREV. CAMPAGNOLO ITALY BREV. CAMPAGNOLO ITALY" on both the upper and lower bearing cups - 26.4 mm hardened steel crown race - post 1967 flattened hex top nut and "keyed" washer - model 1039 ... [Correct as original.]
