Original factory marked C9OE-6312-C, for FE-series 390GT w/ A/C air conditioning & w/ or w/o P/S power steering use. Stamped steel 3-sheave pulley in production thin black paint, crisply stamped w/ (Ford) script oval logo, has straight flanges. From a ’69 model, however the 390 Galaxie / 428 CJ pieces are different. It’s an OEM Ford item, w/ correct form & fit for a mach 1 / GT / Grande / deluxe convertible / Fairlane / 500 / Ranchero / Mercury XR7 / Cyclone / Montego, why go aftermarket.