Dettagli

• The item has no copyright markings on it as can be seen in the links above. The mark at lower right is a logo for the union print shop who produced the poster.
• 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.

1 The symbol © (letter C in a circle); the word “Copyright”; or the abbreviation “Copr.”

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.

3 The name of the copyright owner, an abbreviation by which the name can be recognized, or a generally known alternative designation of owner.1 Example © 2007 Jane Doe."

Licenza

Quest'opera è nel pubblico dominio perché pubblicata negli Stati Uniti fra il 1929 e il 1977, inclusi, senza un avviso di copyright. A meno che l'autore non sia morto da molti anni, non è nel pubblico dominio nei Paesi o nelle aree che non applicano la regola della durata più breve per le opere statunitensi, come Canada (50 pma), Cina (50 pma, ma non Hong Kong o Macao), Germania (70 pma), Messico (100 pma), Svizzera (70 pma), e altri Paesi con trattati individuali. Vedi questa pagina per ulteriori informazioni. العربية ∙ беларуская (тарашкевіца) ∙ čeština ∙ Deutsch ∙ Ελληνικά ∙ English ∙ español ∙ français ∙ Bahasa Indonesia ∙ italiano ∙ 日本語 ∙ 한국어 ∙ македонски ∙ Nederlands ∙ português ∙ русский ∙ sicilianu ∙ slovenščina ∙ ไทย ∙ Tiếng Việt ∙ 中文（简体） ∙ 中文（繁體） ∙ +/−