I doesn't matter if you clearly label anything. All my grandmother's clothing was labeled and within a month she had an entirely different wardrobe in her closet. I would never bring something so important to leave at a nursing home. I brought a nice down blanket for my Grandmother and it was gone within hours. Sorry to say, but the nursing staff and/or aides rummage through everything looking for good stuff. It's a sad fact of life in a nursing home.
If you bring candy, cookies or anything good to eat the nurses would come in and take it. Sometimes that was a good thing, because if you made sure your loved one had goodies in their room, they were "checked on" more often because it would be a good excuse to get a chocolate or a cookie.