A Mike Trout little league home run ball from back in 2004 has sold for $15,600 at Robert Edward Auctions.

Trout hit the home run and signed the ball for his uncle. The uncle held onto the ball for nearly two decades before deciding to sell it, and the lot includes a photo of Trout in his little league uniform. 

Robert Edward Auctions wrote that the ball is believed to be "the earliest signed Mike Trout game-used home run baseball in existence."