Portrait photograph of Giovanni Papini
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Unknown author<span style="display: none;">Unknown author</span></div>
the signature "Giovanni Papini" on the photo is dated 1921
<i>Four and Twenty Minds</i>, New York 1922, <a rel="nofollow" class="external free" href="https://archive.org/stream/fourtwentyminds00papirich#page/n9/mode/2up">https://archive.org/stream/fourtwentyminds00papirich#page/n9/mode/2up</a>