There was a Russian JW who was found with WW 2 souvenirs - Orphan Crow
Seems that it belonged to the unbelieving husband of a JW woman:
Editors note: In written comments, Jehovah's Witnesses' spokesperson Jarrod Lopes said that the explosives seized in the raid were World War II relics that belonged to the husband of a Jehovah's Witness who is not a member of the group himself.