woodblock print by <a href="https://en.wikipedia.org/wiki/Kunisada" class="extiw" title="w:Kunisada">Kunisada I</a>, signed ’Gototei Kunisada ga’, series ’Mirrors of the modern boudoir’, title ’Tooth blackening’, publisher Azumaya Daisuke, date c. 1823
<bdi><a href="https://en.wikipedia.org/wiki/en:Kunisada" class="extiw" title="w:en:Kunisada"><span title="ukiyo-e artist">Utagawa Kunisada</span></a>
</bdi>
1820
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