you have a definate good gun, not an ex sniper but that means nothing to a serious collector, that ex-sniper moniker is real but serious MN collectors wouldn't consider it anymore valuable than a regular gun in good shape. If you are going to start seriously trying to collect quality pieces then just do research at any site you can find and then after you read through all of that, decipher what you can and believe about half of it. Congrats on a good M91/30, don't sweat the details, and shoot the hell out of it.