Chest with Corbin lock

My fiance bought this from his friend. There is no known history or origin not exactly sure of the material either. I'm guessing wood and tin but not sure. There were leather handles on both sides but one has broken off. The lock on the front says corbin lock New Britain Conn. The inside tray is missing and it smells like rotten wood. Could you give an estimated value as it is and would it lose value restored? We will most likely be listing it for sale.

Damaged