Your Father's Bones

 is considered a Curiosity item.

Item description
"One set of bones looks much like another, but you know whose these really are."

Obtaining
 can be obtained in the following ways:

Usage
 has the following uses:
 * This item is required to win the game if your Objective: Ambition is [ 1 ] Find your father's bones, and then retire . Bring this item to London, retire and win the game.