Thanks for this: I love the ad!
The blades are misaligned and several are badly bent. Three are out of their sockets. I guess it could be all straightened out by a competent repairer. I don’t see how to disassemble the section with the aperture mechanism or I might have had a go myself, no doubt further complicating the situation. The glass is pristine.
Unless the aperture is either fixed or removed there is no way to use the lens unfortunately.
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