The Tech Service Bulletin 9 that describes the factory/dealer method for 'rolling' front fender lips for more tire clearance, is dated Nov 2, 1973. So I wouldn't expect earlier unmolested Panteras to have factory-rolled fender lips. It's quite easy to do; I've seen it done in a parking lot using a ball bat with no wheel removal. Took about a minute each fender, with no paint cracking.
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