Canon Breech mount 50mm
Sharp lens - clean condition. some wear on barrel as shown, must have been gray market at one time as C and N of canon logo were carefully etched out. Works great. I can't see any haze, fungus, and barely any dust. Maybe some barely perceptible cleaning marks, but to my eye seems clean and clear. No caps. Last image from a scan made with this lens.
I think you might get more interest if you specified in the title and body of the post that this is the f/1.4. Also it looks like someone was being funny because a previous owner turned your Canon FD into a butthole FD because that's what ano means in spanish.