help what steering wheel is this

I got this steering wheel yesterday it is ford but dont know the year and model whant to find out so i can get a horn button to fit it.

 

it's a 1968 Ford/Mercury wheel. Mustang, Cougar, Fairlane etc.. all used the same wheel

 

Looks like an early Ford passanger wheel, maybe mid to late 50's, or a truck wheel of the same years.
Just a guess...............but it is a Ford wheel.