DescriptionThe Message in the Hollow Oak (1935) cover art, 1961 printing (copy 1).jpg	English: The Message in the Hollow Oak (1935) dust jacket, 1961 printing (copy 1)
Date	1961
Source	AbeBooks
Author	Cover art by Rudy Nappi
Other versions	This file has an extracted image: The Message in the Hollow Oak (1935) cover art, 1961 printing (copy 1) (cropped).jpg. This file has been extracted from another file : The Message in the Hollow Oak (1935) dust jacket, 1961 printing (copy 1).jpg

The back cover and back flap of the dust jacket are not shown in their entirety, so the lack of a copyright notice is not certain. However, at least one other dust jacket featuring the same cover art from the same printing, is known to be published without a copyright notice.

See:

• File:The Message in the Hollow Oak (1935) front and back covers and spine, 1961 printing (copy 2).jpg
• File:The Message in the Hollow Oak (1935) front and back flaps, 1961 printing (copy 2).jpg

Thus it is reasonable to assume that this dust jacket is published without a copyright notice.

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. 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） ∙ +/−