circa 19th century
<i>Twilight of Ancient Peru: the glory and decline of the Inca Empire</i><sup id="cite_ref-1" class="reference"><a href="#cite_note-1">[1]</a></sup> by Lieselotte and Theo Engl (1969), photograph of original portrait located in the Museum für Völkerkunde Berlin-Dahlem.<sup id="cite_ref-2" class="reference"><a href="#cite_note-2">[2]</a></sup>