Crown Prince headpiece (Earth-2213)

"... this is a royal artifact. It's supposed to be worn by the Crown Prince."

- - Roku and Sozin

The Crown Prince headpiece is an ancient royal artifact of the Land of Fire passed down to the Heir to the Fire Lord. It possesses two prongs on each side and encircles the top-knot.

History
The headpiece was passed down to generations until its inheritance by then-Prince Sozin, who gave it to his friend, Roku, the future Sage of the Six Paths, as a sign of their friendship before the latter journeyed to master his bending skills. Roku continued to use it for the rest of his life to remind himself of their connection.

The Avatar was not wearing the headpiece when he died, and it fell off his bedside during a sudden escape from his residence with his wife, Ta Min. The headpiece was eventually retrieved by Roku's daughter, Rina, who found it when Fire Lord Azulon came to her house to have his son, Ozai, propose to Ursa. The headpiece was eventually taken by Iroh, Sozin's grandson, who passed it to his nephew, Prince Zuko.