You are looking at a screen used prop bomb from Underworld: Awakening and signed by Kate Beckinsale. Selene can be seen using this when infiltrating Antigen Headquarters. The autograph and the prop are authenticated by Celebrity Authentics and comes with a COA card showing Kate signing the prop along with a Letter of Authenticity that is also signed by Kate certifying the authenticity. If you have any questions feel free to ask. Thanks