I agree with Beezly.
Here's a bit different style Ford steering wheel V8 horn button/center cap from the 40's
and here's yet another that's a bit different:
So I think a horn button/center cap is very likely.
Ford was very proud of their V8. There were emblems in many places.
They might not have had any idea of what a bunch of hot rodders would be able to do with that motor.
The most ambitious was probably the Ardun Conversion. Made a flathead into an overhead valve hemi.
They still race them at Bonneville.
Milled, filled, and flycut. Seemed no limit to the modifications.