Great for your resto project! This here is a super clean, lightly storage worn SR Sakae/Ringyo Super Custom Triple crankset, melt-forged high strength light alloy. Taken from VeloBase: According to the SR catalaogue P-7 from Sept. 1982: Super Custom CT-5LA, melt-forged high strength, light alloy, one piece crank and arm, aerodynamic style, cold rolled super Duraluminum chainrings, chain line same as AEROX "Interchangeable with the (AE-5LA or) CAMPAGNOLO"...!? Meaning JIS=Campa=ISO??? 170mm Crank arms, 9/16" pedal threads. check out our other great listings of used/NOS cycling parts and accessories, you may find something you want/need!