I agree, try taking them and show them to your Grandma, it just might bring back a memory for her. Even if she doesn't speak, she would surely like to see them. They are a treasure, especially being from your Grandma.
Mama couldn't speak or communicate, but sometimes there were things that would just cause you to know she remembered. One time, before she stopped speaking all together, she heard a truck running in the parking lot outside her window, and she said, "That sounds like Earl's truck." That was her son and my brother. He had been dead for a few months.