Loose aperture blades in Canon Rangefinder lens 50mm f:1.2______Motion lapse film

The aperture blades was loose in this Canon Rangefinder lens 50mm f:1.2, because of old sticky oil that works like glue. Some of the blades was bended but it was easy to fix. And now this nice old lens works like a new, really a great lens to repair and of course use on the camera.