1942-1948 Mercury Steering Wheel Differences

[Strick]

Does anyone know the differences in 1942-1948 Mercury steering wheels? Some have stainless bands on the horizontal shaft in the center of the steering wheel and some are plain and resemble a 1946-1948 Ford.

Also, the horn buttons are different colors. Anyone know what years are which?

Looking to collect 1941-1948 Mercury steering wheels, horn rings, and horn buttons (Canadian too). I'm interested to know the differences for each year.