I have a '61 Springfield which had been de-farbed by a previous owner. Is there any way to tell who the manufacturer might be (Armi or Euro) by looking at the serial number (it's on the underside of the barrel)? Or would there be any maker's markings I should look for? This rifle is probably 20 years old. I've had it for 10, and I have no idea how long the previous owner held it for. I can't ask him because he's pretty disappeared off the face of the earth, and he had so many fire arms he probably won't remember. I tried the search function to not much avail. The reason I ask is because I would like to replace a few parts in on the lock and I'd like to get the right part, unless of course it doesn't matter what manufacturer's part I get. I'd appreciate any help on this.