English: Poster for the American drama film Scarlet Seas (1929).
The item has no copyright markings on it as can be seen in the links above. At bottom is Country of origin and production USA, a logo for Morgan Litho Corp, Cleveland, O.--they printed the poster--and some numbers which seem to pertain to the printing of the poster.
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.