Sisko's baseball

Sisko's baseball was a baseball owned by Benjamin Sisko. As it usually was displayed on his desk in the station commander's office of Deep Space 9, it came to symbolize Sisko's command of the station. 

After Sisko was forced to abandon Deep Space 9 at the start of the war, he left his baseball behind as a reminder to Dukat that he would return to claim it and the station. Dukat returned the baseball after Operation Return. 

After the death of Jadzia Dax, the disappearance of the Prophets and the closure of the Bajoran wormhole, Sisko took a leave of absence, taking his baseball with him. Kira Nerys interpreted his action as due to Sisko not being sure he would return. 

Sisko took the baseball with him to when in search of answers after having a vision from the Prophets. When Ezri Dax took the baseball from him in desperation over Sisko's obsession over the search, she threw it away and it landed on an area in which Sisko would dig in and find the Orb of the Emissary. 

The baseball remained on the desk after Sisko joined with the Prophets. In 2376, Kira put Sisko's baseball into a drawer on her desk, planning to return it to Sisko when he returned but demonstrating that Deep Space 9 was now her command. (, SS DS9 (Horn and Ivory), )

The baseball was still displayed on Kira's desk in 2377.