It is off a DeRosa that I had Rarely ever used. This is a crankers dream come true it has a pair very nice and very hard to find 170 mm length Polished Crank Arms and very. Nice 50-42 campy chain rings. This is not a museum piece. Words cannot describe the condition of this crankset. The crank arms are nearly flawless as well as all the threads and fasteners. You might find some very small cleaning scratches, blemishes, scuffs, rub marks, bugs, tar, nicks, etc etc etc mostly on the rings but overall it still shines and the teeth still have many many miles left on them. With no cracks at the spider. The campagnolo name is clearly visible on the chainring bolts as well as on the polished arms. This crank does has not very many miles on it and has very many more left. And Also This Is A MATCHED Set– 170 Strada 2 in a Circle Which is 1982. A beautifully made crankset for your vintage road bicycle. You may never see another crankset like this again.