ThreeFiftySix

I have a '65 356C that doesn't have molding on the rocker panels. Prior to my ownership this 356 had been painted twice. Dolphin Gray to Red and then Red to Silver. I like the Silver Metallic with Blue interior but will eventually put it back to the original Dolphin Gray that had Blue interior. I'm wondering if all 356C's came with molding or was this an option? I have seen pics of a few other 356C's without the molding but most have it. How were the original panels attached to the car? Also, suggestions on where to purchase panels would be greatly appreciated. Thanks!