{"type": {"key": "/type/work"}, "title": "Map of a reconnoissance between Fort Leavenworth on the Missouri River, and the Great Salt Lake in Utah, etc., 1852", "authors": [{"type": {"key": "/type/author_role"}, "author": {"key": "/authors/OL6302094A"}}], "key": "/works/OL43859572W", "latest_revision": 1, "revision": 1, "created": {"type": "/type/datetime", "value": "2025-08-10T12:05:18.215197"}, "last_modified": {"type": "/type/datetime", "value": "2025-08-10T12:05:18.215197"}}