Campagnolo Super/Nuovo Record rear quick release from post-C.P.S.C. (1978) era — lever is curved c « locked »/« unlocked » and d-ring nut is the mushroom shape. The nut (rather than c-clip) holding the lever to the cam confirms this as Record-level. Because the « Brev. Camp. » is stamped on the body of the cam rather than the face, I believe this places this lever in the 1978 - 1982 range, but I’m no Campagnlogist, so I’m not certain. Does not include springs. 88g as such.