Just bought a 1967 Calais odd rim question.

Like stated I just picked up this 1967 Calais hardtop and am totally confused about the rims on it they look a$$ backwards but are on the right way according to the lug nut holes. I cant post pics so I will d my best to describe them. They have a double step whoop but the centers look like inside out? 3 rivets? These are not the often talked about CC rims are they? I looked up as many hubcapless pics of 67s I could and none had this wheel. All 4 of the rims on the car and the spare are like this. Any help would be apprecitated.
 
Thanks I just really wasn't sure and could only find one pic on the web with close up of a possibly stock steel wheel on a 67 and they didn't look like this. They just looked so wierd to me. I figured here was a good place to ask as many people here have non procar Cadillacs also.
 
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