A Civil War-era 12-pound smooth bore round found in Seaford on March 10, 2021 (WYDaily/ Courtesy of York-Poquoson Sheriff’s Office) SEAFORD — Children playing with a metal detector on Mastin Avenue in Seaford were surprised to find a large, round object buried two feet below ground. After they brought their discovery inside a home, the parents immediately called the York-Poquoson Sheriff’s Office (YPSO) for assistance. On Wednesday, March 10, sheriff’s deputies responded to the scene to assess the strange object and, after taking a good look at it, they called in the expertise of the Explosive Ordnance Disposal Detachment at Naval Weapons Station (NWS) Yorktown.