[clm69z28]

I was digging through some of my old 69 Z28 parts and I picked up this old fan clutch and started to scrape away the old paint. And low and behold, I saw what I thought was the original Eaton CV application code and E14J date code. But I am no expert on the stamps, so any opinions are appreciated. And if it is original, what would be the best way to clean it up? Try and preserve it and clean off the lousy rattle can finish, or totally restore it? Thanks in advance for any input.