File:DrFPieperattheFortWayneConventionin1923.jpg

Camera location	41° 08′ 13.62″ N, 85° 06′ 37.35″ W	View this and other nearby images on: OpenStreetMap	41.137118; -85.110376

This picture is in the public domain.

This work is in the public domain because it was published in the United States between 1929 and 1963, and although there may or may not have been a copyright notice, the copyright was not renewed. For further explanation, see Commons:Hirtle chart and the copyright renewal logs. 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 (70 years p.m.a.), Mainland China (50 years p.m.a., not Hong Kong or Macao), Germany (70 years p.m.a.), Mexico (100 years p.m.a.), Switzerland (70 years p.m.a.), and other countries with individual treaties. العربية ∙ Deutsch ∙ English ∙ español ∙ français ∙ galego ∙ italiano ∙ 日本語 ∙ 한국어 ∙ македонски ∙ português ∙ português do Brasil ∙ русский ∙ sicilianu ∙ slovenščina ∙ українська ∙ 简体中文 ∙ 繁體中文 ∙ +/−

The copyright has definitely expired in the USA. The 1944 copyright to "80 Eventful Years: Reminescens of Ludwig Ernest Fuerbringer" expired in the early '70s because the publisher, Concordia Publishing House, chose not to renew the copyright. As a result, the book was scanned by Google and is available for full view at http://hdl.handle.net/2027/mdp.39015071145463?urlappend=%3Bseq=112 . The link will take you to page 92, the page of the image. The listing at the Hathitrust Digital Library states "Copyright: Public Domain, Google-digitized". I checked out their claim with the official copyright renewal registration records and found that Hathitrust was correct by saying the work is public domain, because it was not renewed.