what year steering wheel is this?

[DeputyDan]

So I bought a 72 chevy c-10 super cheyenne and it came with this wheel. All the other wheels I have seen have square horn buttons. I am assuming this is not an original wheel. I need to get the horn working so it passes inspection. It works when I ground the little push button to the side of the cup so I am assuming all I need is a horn button kit. I was going to buy a horn kit with the little cup, disc, plastic ring and all but this wheel already has some type of metal cup in it. It looks like the horn clips to this metal cup. Does anyone know what year steering wheel this is, or if the regular horn kit will work in it? Thanks guys!