So, I was browsing eBay for Nikon 85mm f/1.8 lenses and I came across this listing. The remarkable thing is the neat absence of the focusing ring, but otherwise pristine appearance of the lens. I was surprised when this was sold for a high price. I was even more surprised when I saw what I thought to be the same lens re-listed today. On closer inspection, I found that the seller was the same and the serial number was different.
So, my question is: what kind of repair work/accident would lead to this kind of neat removal of the rubberized ring, and in more than one lens? Is this part of some repair, where you have to remove the ring to detach the front element or something?