There are no copyright marks. At bottom left is Country of origin USA and the logo of Morgan Litho. Corp.-they printed the poster. At bottom right is This poster is the property of Columbia Pictures Corporation and it is leased, not sold.
Note that it may still be copyrighted in jurisdictions that do not apply the rule of the shorter term for US works (depending on the date of the author's death), such as Canada (50 p.m.a.), Mainland China (50 p.m.a., not Hong Kong or Macao), Germany (70 p.m.a.), Mexico (100 p.m.a.), Switzerland (70 p.m.a.), and other countries with individual treaties.
{{Information |Description=Poster for the 1931 film ''The Good Bad Girl''. |Source=[http://poster.scancollections.com/view.php?id=434093 source] |Date=[http://www.imdb.com/title/tt0021921/?ref_=fn_al_tt_3 1931] |Author=Columbia |Permission=Pre-1978 no...