72 Super, I have an extra GM NOS in the box black w/blue bowtie horn button to go with franks black wheel if you guys end up making a deal. The picture that you just posted of your NOS 3/4 ton set kinda has the centers looking concave, meaning they are re-pianted yellow bowtie 73 up NOS pieces. All of the original 3/4 ton blue bowtie caps were convex/bulging outward in the centers, it could just be the angle of your picture also though. Mel