Rotor for my SSBC A1531 conversion

I sold one of those kits a while back, and the rotors had a dual pattern. Worked for both 5 on 4 and 5 on 4.5 bolt pattern. I am pretty sure they are some sort of Ford rotor, because some early Mustangs had basically the same brakes as 66-72 A bodies, but with 4.5 bolt pattern.IMG_1839.JPGIMG_1840.JPGIMG_1842.JPG