A Wenatchee man was working on his furnace when he noticed a small box taped in the casing. Inside he found 50 silver ingots and a silver coin.
The Wenatchee World reports they were worth almost $15,000.
Rick Acosta told police about the treasure. They tracked down the previous owner of the house who moved out six years ago. He had ownership papers with serial numbers, so the box of silver was turned over to him.
Acosta was given a "significant" reward.