What are these hotwires?

Picked up a set of these hotwires, wanted them because they look different to what I have ever seen before.
 
They are 13x5.5 and have a ford stamp in the back of them. Were they possibly an aftermarket ford wheel or an optional extra on a certain model?
 

 
and this compares it to a cheviot 13x7 hotwire

 
If anybody has any clue or input it would be great to hear from you!
 
Cheers,
Ryan