Mornauer portrrait (1866 sketch by George Scharf)
<bdi><a href="https://en.wikipedia.org/wiki/en:George_Scharf" class="extiw" title="w:en:George Scharf"><span title="first director of the National Portrait Gallery, London (1820-1895)">George Scharf</span></a>
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Susan Foister (1991). "The Portrait of Alexander Mornauer". <i>The Burlington Magazine</i> <b>133</b> (1062): 613–618