een 1927 and 1977, inclusive, <b>without a <a href="https://en.wikipedia.org/wiki/Copyright_notice" class="extiw" title="w:Copyright notice">copyright notice</a></b>. For further explanation, see <a href="/wiki/Commons:Hirtle_chart" title="Commons:Hirtle chart">Commons:Hirtle chart</a> as well as a <a href="/wiki/Commons:Public_art_and_copyrights_in_the_US" title="Commons:Public art and copyrights in the US">detailed definition</a> of "publication" for public art. Note that it may still be copyrighted in ju