{"subjects": ["Cipher and telegraph codes", "Railroads", "Cipher and telegraph codes -- Railroads."], "key": "/works/OL1103804W", "title": "The standard cipher code of the American Railway Association", "authors": [{"type": "/type/author_role", "author": {"key": "/authors/OL113834A"}}], "type": {"key": "/type/work"}, "covers": [7042693], "description": {"type": "/type/text", "value": "xvi, 75l, [1] p. 18 cm."}, "latest_revision": 6, "revision": 6, "created": {"type": "/type/datetime", "value": "2009-12-09T20:30:22.907780"}, "last_modified": {"type": "/type/datetime", "value": "2025-05-12T23:49:09.940766"}}