easy horn button question.....

Hey guys, just need a little pointer on how to get the horn ****on off of a 41 Ford coupe. I am aware there is a shaft coming off the back of the ****on, but I don't know where it ends, or how it is attached. Any help is greatly appreciated!
Steve

 

'41?....

push in, turn counter clockwise?

 

It worked!! Thank you. Now maybe I can still make it to the hunnert car pile-up in Illinois!
Steve

 

why would a horn keep you from the Pileup?