Correct horn button mount!

Hi, I'm looking for the correct piece for my steering wheel to Mount the horn button to. I have a 1970 Duster textured plastic three spoke steering wheel. It is not a tuff wheel, nor does it have a full horn ring, it is the center button only. I have the steering wheel and the button but I'm missing the horn switch/ mount piece. There are a myriad of different pieces out there but I don't know if I've actually found the correct one yet. It should have three angled sections to accept the actual horn button which you would obviously spin on clockwise a small amount and it also would need a spade terminal to accept the horn wire. A picture would be great a part number would be even better! Thanks everybody.

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