Cabinet photograph (6½" x 4¼") of <a href="https://en.wikipedia.org/wiki/Gustav_Mahler" class="extiw" title="en:Gustav Mahler">Gustav Mahler</a>: this work has been published in: <cite style="font-style:normal"> (January 1901). "<a rel="nofollow" class="external text" href="https://books.google.com/books?id=9dkB_UpSM5cC&amp;pg=PA28">Gustav Mahler</a>". <i>Musical Record and Review</i> (468): p. 28. Boston, United States: Oliver Ditson Company. Retrieved on <span class="mw-formatted-date" title="2010-03-30">2010-03-30</span>.</cite>, and <cite style="font-style:normal">Kleefeld, Wilhelm (1904–05). "<a rel="nofollow" class="external text" href="https://books.google.com/books?id=4BgFAAAAYAAJ&amp;pg=PA187">Wagner-Dirigenten</a>". <i>Velhagen &amp; Klasings Monatshefte</i> <b>19</b>: p. 187. Berlin, Germany: Verlag von Velhagen &amp; Klafing. Retrieved on <span class="mw-formatted-date" title="2010-03-30">2010-03-30</span>.</cite>
<bdi>E. Bieber
</bdi>
Taken in 1893; published in 1901
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