This is the pen used throughout by Det. David Mills (Brad Pitt) in director David Fincher's classic, SE7EN. The pen comes with all relevant paperwork and can be screen-matched to numerous scenes in the film. The pen features prominantly throughout the shoot (more than I originally noticed!). It can be seen being tapped, shaken, even clipped to Pitt's shirt right up to the point where the 2 detectives escort John Doe to the classic final scene.
An amazing piece of history from one of the greatest movies ever made in my opinion.