I waited to answer, but my original thought was born out, I finally went out to the garage and looked in my 68 parts book ... 68 Chrysler wagon (I think all C wagoons), 14x6.5, #2823 780

I have always been a wide steel wheel sort of guy, and I was always on the look out for the widest factory version for my B cars.

In my area of Vermont, even at 31 63436, 68 C wagons were not common, but I do remember having a set, tho not special enough for me to keep them when selling the car, after all, the look is what attracted me and at least one other person.