The 'Bramit Device' was a special silencer designed for the Nagant revolver. This revolver was one of the few in history that were capable of effectively hosting a silencer as the cylinder actually moved forward during firing, sealing the gap between chamber and barrel and preventing gasses from escaping. I am sure there have to be some examples of this device out there somewhere, but I wouldn't hold my breath. They are not importable, so they would have had to be registered loooong ago (no offense to my elders
), the only one I know of is in a museum in Langley, VA.