Overall excellent vintage condition in my opinion. Aperture ring is snappy and focus is smooth, if a little stiff. Glass is free from haze, fungus and there is no separation. There is dust inside but it doesn't affect your photos. There is wear on the barrel to be expected from an old lens. 

This is a really great, compact lens. Center sharpness is outstanding, especially for something from the film era. 

If you're looking for a super compact, lightweight prime lens for your Leica M body that has some vintage character, I highly recommend this lens.  

I do not accept returns so please review images carefully before purchasing. I hope the video helps.