1967 Shelby Mustang Original Real Wood Steering Wheel Fiv Secura

My dad bought a 67 Shelby Mustang GT 500 back in 80's. He replaced the steering wheel with an aftermarket one. This is the original steering wheel.

Horn button is wrong, and I'm unsure how to get it off. Measures 15 3/4 inches outside diameter.

Secura became the vendor for Shelby after EFFPI went bankrupt.