{"first_publish_date": "1994", "dewey_number": ["338.4/76691410994"], "title": "Australia's age of iron", "covers": [3895354], "subject_places": ["Australia"], "lc_classifications": ["TN704.A8 J33 1994"], "key": "/works/OL3581250W", "authors": [{"type": {"key": "/type/author_role"}, "author": {"key": "/authors/OL605034A"}}], "subject_times": ["19th century"], "subjects": ["History", "Metallurgy", "Industrial archaeology", "Blast furnaces", "Iron", "Australia, antiquities"], "type": {"key": "/type/work"}, "latest_revision": 4, "revision": 4, "created": {"type": "/type/datetime", "value": "2009-12-10T03:54:30.321457"}, "last_modified": {"type": "/type/datetime", "value": "2023-01-17T06:50:13.865832"}}