My great aunt and uncle worried about this so what they did was put a label with the beneficiary's name on it on the item itself. On the back, etc. where it could be found but not in plain view. It sure did make distributing their things go easier.
I'm only 55 and I'm actually having my girls go through my jewelry and other things and letting them take what they want now. I'm not using it and they might as well be using now. They are very into vintage jewelry so they had a ball going through it. It was really fun. Soon I'm going to dig out my grandmother and great aunt's jewelry and let them at it.