{"e":{"id":306943,"source":"ia_catalogofcopyrig3121213li","title":"THE ADVENTURES OF ELLERY QUEEN","header":"Once a killer","year":1954,"reels":null,"feet":null,"sound":false,"credits":null,"notes":[],"line_start":28750,"line_end":28750,"source_text":"Once a killer, © 1Sep54; LP12479. ","source_meta":{"name":"Catalog of Copyright Entries, Third Series, Parts 12–13: Motion Pictures, 1958","url":"https://archive.org/details/catalogofcopyrig3121213li","cite":"Internet Archive catalogofcopyrig3121213li (OCR text)","file":"/root/projects/publicreel/data/raw/cce_third_series/1958_catalogofcopyrig3121213li_djvu.txt"},"ia_items":[],"ia_lookup":[{"queried_at":"2026-09-05 07:54:39.211128+00:00","num_found":0}]},"regs":[{"id":325850,"entry_id":306943,"reg_number":"LP12479","series":4,"see_also":[],"reg_class":"LP","published":true,"claimant":"Rocket Pictures","author":null,"deposit":null,"reg_date":"1954-09-01","part":null,"part_title":"Once a killer","source_line":28750,"raw":"Once a killer © 1Sep54; LP12479","flags":["claimant_from_parent","episode_title","serial_part"],"status":"uncertain","pd_date":null,"reason":"registration number LP12479 does not fit the numbering of 1954; the catalog date or number is likely misprinted","match_kind":null,"match_confidence":null,"title_similarity":null,"renewals":[],"window":[1981,1982],"window_volumes":[{"year":1981,"ia_identifier":""},{"year":1982,"ia_identifier":""},{"year":1983,"ia_identifier":""}]}]}