BALTIMORE (AP) — A U.S. Postal Service employee has pleaded guilty to stealing more than 20,000 pieces of mail since 2005.

Forty-seven-year-old Jeffrey Shipley of Millersville entered the plea in federal court in Baltimore on Thursday.

READ MORE: Harbaugh Feels 'Really Good' About Secondary Thanks To Recent Additions, Including CB Kyle Fuller

According to his plea agreement, Shipley was a letter carrier in Brooklyn, Parkville and Catonsville. Prosecutors say he stole mail, stools, mail bags, signs and other items from the Postal Service.

READ MORE: Where's Marty? Celebrating 'Top Gun: Maverick' With The Glenn L. Martin Aviation Museum

Authorities say a search of Shipley’s home in March uncovered more than 20,000 pieces of mail, including credit cards, gift cards, checks, passports, jewelry, and other items.

Shipley agreed to quit his job, and could be sentenced to up to five years in prison.

MORE NEWS: Marylanders Can Now Add Their Driver's License To Apple Wallet

(Copyright 2013 by The Associated Press. All Rights Reserved.)