I agree, given all the JP components, this is likely one that got a BSC BB threading. I had an earlier one, same paint and other details, including Shimano dropouts, but had (nearly) all French components and a FR or Swiss BB...I guessed mine was a '74.The fork blades seem a little "off" to me, but it's so hard to judge from just one pic, in any case I doubt that they are unrepairable. I'd just concentrate on getting the fork straight, clean/derust everything and touch-up the chips with nail polish...then just ride it as a "rider" and don't sweat the cosmetics.