A cousin of mine who used to own the silver harp gave it to me. This silver harp the Punisher is playing is really a candle holder very similar to this:
It suppose to have a narrow pole on it which holds a tray for the candle to sit on. But that part broke off. Thus, rendering the candle holder pretty useless when it comes to holding a lighted candle. Yet, very useful for The Punisher to play breath taking music on it in memory of his family.