How do, Im currently serving out in Iraq and have managed to aquire a Duska 12.7mm. It's in pretty decent nick and as my other half's mess are seeking contributions I thought I'd pass it on to them. So I've had it deactivated by the armourer, and am now in possession of the Certificate of Deactivation. I'm unsure of the next step(s). I've heard rumours that it must go to the Proof House next, is this correct? Anyone out there got any ideas for improving its appearance before donating it, it's a bit rusty...nothing too bad, is bluing or painting the way to go?