{"id":"S97003824","label":"Cross-staffs (Navigation instruments)","description":"","source_url":"https://id.loc.gov/authorities/subjects/sh97003824","normalized_label":"cross-staffs (navigation instruments)","broader":["http://id.loc.gov/authorities/subjects/sh85090333"],"aliases":["Cross-staves (Navigation instruments)","Fore staffs","Forestaffs","Jacob's staffs"],"source_identifier":"http://id.loc.gov/authorities/subjects/sh97003824","provider":"lcsh","revision":"6bb3083c7a593987","taxonomy_revision":"f050b5d4780b1289","title":"Cross-staffs (Navigation instruments)","url":"/topics/S97003824","kind":"topic-directory","aeo_cohort":"topic-directory","catalogue_revision":"f050b5d4780b1289","numeric_address":"9817847188745750050","address_version":"morton4x16-v1","coordinates":[0,23,8356,49152],"answer_status":"Directory metadata; local answer requires separate source review","truth_status":"Subject descriptor, not a factual answer or a demonstrated knowledge gap","reviewed_answer":null}