The item has no copyright markings on it as can be seen in the links above. At bottom left is Country of origin & production USA. At bottom right is the Tooker Litho Co. logo-they printed the poster-and some numbers which appear to pertain to the poster's printing.
United States Copyright Office page 2 "Visually Perceptible Copies The notice for visually perceptible copies should contain all three elements described below. They should appear together or in close proximity on the copies.
2 The year of first publication. If the work is a derivative work or a compilation incorporating previously published material, the year date of first publication of the derivative work or compilation is sufficient. Examples of derivative works are translations or dramatizations; an example of a compilation is an anthology. The year may be omitted when a pictorial, graphic, or sculptural work, with accompanying textual matter, if any, is reproduced in or on greeting cards, postcards, stationery, jewelry, dolls, toys, or useful articles.
See on algupärase kahemõõtmelise kunstiteose tõetruu fotograafiline jäljendus. Kunstiteos ise on järgeval põhjusel avalikus omandis:
Public domainPublic domainfalsefalse
This work is in the public domain in the United States because it was published in the United States between 1929 and 1977, inclusive, without a copyright notice. For further explanation, see Commons:Hirtle chart as well as a detailed definition of "publication" for public art. 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.
Wikimedia Sihtasutuse ametliku seisukoha järgi on avalikus omandis olevate kunstiteoste tõetruud jäljendused samuti avalikus omandis. Vastuväited sellele on vastuolus üldise ettekujutusega avalikust omandist. Vaata abilehte Commons:When to use the PD-Art tag. Seetõttu arvatakse ka fotograafiline jäljendus avalikus omandis olevaks.
Palun võta arvesse, et kohalikud seadused võivad selle materjali taaskasutamise keelata või seda piirata. Vaata abilehte Commons:Reuse of PD-Art photographs.