On one spider arm there is a small. Stamping, hidden with the ring installed. This is the stuff from which lore is born. A friend sent me a picture of his Super Record rear derailleur with Campy’s 4-diamond logo stamped on the cage. Campy did this from time to time, for reasons known by the gods… For your vitrine are these Campagnolo Record crank arms (751, 752) with crank cover plates (756). They are in excellent condition, please zoom in. They date to 1973. One picture is from Catalog 18, showing a Campy employee assembling crank sets. I mention this to account for the marks on the right arm taper, they came that way. The left arm is clean. If I make a mistake (and I have), I’ll take care of it (and I have). 2 Best way, put items in your cart and request a total. Post Office with Ground Advantage, includes tracking. In a hurry? 2 For two or more listings, put all items in your cart. From your cart, request a total or just pay.