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.
This signature is believed to be ineligible for copyright and therefore in the public domain because it falls below the required level of originality for copyright protection both in the United States and in the source country (if different). In this case, the source country (e.g. the country of nationality of the signatory) is believed to be Unknown, probably United States.
Note that this tag cannot be used on all signatures, as not all signatures are copyright-free.
יצירה זו (או חלקיה) כוללת חומרים אשר עלולים להיחשב כסימן מסחר בחלק מתחומי השיפוט. לפני שתשתמשו ביצירה זו, אנא ודאו כי בידכם הרשות החוקית לעשות זאת בהתאם לנסיבות השימוש. שימו לב כי הנכם אחראיים באופן אישי על כך שאינכם מפרים סימן מסחר של מישהו אחר. ראו גם הבהרה משפטית.