I am simply curious. I like them but know NOTHING about them. Factory or not? Era? Maker? They are 2 or 3 piece-depending upon how you look at it. Screw/bolt together and apart. Thanks. It's anew project I am beginning to look into a little bit. I appreciate any feedback if anyone recognizes the wheels/wheel covers/hob caps, or whatever these are officially considered to be! She's a 1952 Chrysler Windsor Saratoga 4 door w/331 Hemi. Thanks!