This is a manufacturing defect, I suppose it will not affect the shooting. It will not hurt to change the lubricant. You will get what you see in the photo. I guarantee sending within 3 days, as well as reliable packaging of the goods.
Come to my store, I'm sure you will find something interesting for yourself. Have a nice day and good shopping!
The item "Rare Lens Carl Zeiss Jena BIOTAR Red T 2/58 17 Blades 42 silver vintage" is in sale since Monday, October 12, 2020. This item is in the category "Cameras & Photo\Lenses & Filters\Lenses". The seller is "ivankonstantinovichi" and is located in Moscow. This item can be shipped worldwide.