{"subjects": ["Pearls", "Primitive Musical instruments", "Shells", "Purpure", "Cowries", "Purpura (Mollusks)", "Ancient Musical instruments"], "key": "/works/OL7628677W", "title": "Shells as evidence of the migrations of early culture", "authors": [{"type": "/type/author_role", "author": {"key": "/authors/OL2339143A"}}], "type": {"key": "/type/work"}, "covers": [5640864], "latest_revision": 6, "revision": 6, "created": {"type": "/type/datetime", "value": "2009-12-10T21:30:50.106832"}, "last_modified": {"type": "/type/datetime", "value": "2024-07-16T09:57:38.332390"}}