Very solid build quality, chrome over brass, giving the lens a precision feel that modern day lenses no longer have. The external cosmetic condition of the lens is Excellent, HARD to find like this (please see images attached). Canon Rangefinder lenses are known to be Superb optics, they were made in significant numbers making them very affordable considering the quality they offer.
The optics of the lens are clear & clean, examined with a torch there is some light haze but this has NO effect on actual images made.