What defenders ring is in a display case inside the shrine of the Alamo?

The Defenders' Ring displayed inside the Alamo shrine is a symbol of honor and remembrance for those who defended the Alamo during the 1836 siege. It is made from melted metal taken from the Alamo's original bell, symbolizing the sacrifice and bravery of the Texian defenders. The ring serves as a tribute to their legacy and the fight for Texas independence.