@Knownworldwide
I did search for Deneb and got so many hits I figured I better send the kid under the car to get the numbers off the wheel. Many hits were for the same outer face as these but like you say, offset could be all over the map.

Both front center caps don’t seem to sit flush with the face of the wheel. I’ve assumed it’s because the wheel is thinner in the center than the original wheel or that the offset is inboard more. It may also have been that the clips were messed up.

I did see that most of the center caps are 75 mm and that they are cheap enough that I think I’ll get a set assuming they’ll fit.

I’ll need to come up with a spare tire/wheel combo, there’s a way trashed 14” chrome bundt in the trunk now with what might be an original Michelin WVS on it. Or I can just use my 200 mile radius AAA tow plan. As long as the ‘74 F250 hasn’t used up the tows for the year. I must say it looks impressive on a flatbed!

Michael