What is the meaning of picture of hand with Arabic word in a Ta`weez

While cleaning the top roof of my room I have discovered a strange thing. A silver color beautifully decorated large taweez. Out of curiosity I have opened it and found 3 pieces of paper with drawing and many Arabic sentences. A beautiful smell was emitting from it. I don't know Arabic. I just want to know what is the purpose of this taweez? How It comes to my roof top?