A guy I know has an NOS Cuda fender that has the part # 3579379 ink stamped on it, and it has the lip folded down similar to the early build Hemi fenders, but not exactly the same. What do you guys think, did this fender come from the factory like this, or was it more likely modified before my guy got it? He has had it for at least 20 years and it was like that when he got it.