{"title": "The early years of the Ordnance Survey", "covers": [8495489], "first_publish_date": "1969", "key": "/works/OL169103W", "authors": [{"type": {"key": "/type/author_role"}, "author": {"key": "/authors/OL18511A"}}], "dewey_number": ["354.42/008"], "type": {"key": "/type/work"}, "subjects": ["Great Britain", "Great Britain. Ordnance Survey"], "latest_revision": 5, "revision": 5, "created": {"type": "/type/datetime", "value": "2009-10-20T12:27:38.776464"}, "last_modified": {"type": "/type/datetime", "value": "2026-04-01T23:55:54.331658"}}