<a href="https://en.wikipedia.org/wiki/Ambigram" class="extiw" title="en:Ambigram">Ambigram</a> by <a href="https://en.wikipedia.org/wiki/Georges_Perec" class="extiw" title="en:Georges Perec">Georges Perec</a> (<a href="https://en.wikipedia.org/wiki/Oulipo" class="extiw" title="en:Oulipo">Oulipo</a> member) : "<b>andin basnoda a une epouse qui pue</b>" (<i>Andin Basnoda has a smelly wife</i> in French). 180° rotational symmetry. White letters on black background. Created with the <a href="https://en.wikipedia.org/wiki/Arial" class="extiw" title="en:Arial">Arial</a> typeface, very slightly modified. Perec called his creation "vertical <a href="https://fr.wikipedia.org/wiki/palindrome" class="extiw" title="fr:palindrome">palindrome</a>". The French typographer <a href="https://fr.wikipedia.org/wiki/Pierre_di_Sciullo" class="extiw" title="fr:Pierre di Sciullo">Pierre di Sciullo</a> created a typeface named <a rel="nofollow" class="external text" href="https://www.liberation.fr/culture/1996/07/27/l-ecrit-touareg-du-sable-au-papierun-typographe-francais-a-retranscrit-l-alphabet-des-hommes-du-dese_176184/">"Basnoda" in homage to this ambigram</a>.
<p>Sources:
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<ul><li><a rel="nofollow" class="external text" href="https://web.archive.org/web/20070204091523/http://www.cabinetperec.org/anciens-numeros/cabinet-1/basnoda/basnoda-annexe1.html">Manuscript 1 by Georges Perec</a></li>
<li><a rel="nofollow" class="external text" href="https://web.archive.org/web/20070204091544/http://www.cabinetperec.org/anciens-numeros/cabinet-1/basnoda/basnoda-annexe2.html">Manuscript 2 by Georges Perec</a></li>
<li><a rel="nofollow" class="external text" href="https://web.archive.org/web/20070205170358/http://www.cabinetperec.org:80/anciens-numeros/cabinet-1/basnoda/basnoda-article.html"><i>Les tristes épousailles d'Andin Basnoda</i> Pierre di Sciullo &amp; Bernard Magné</a> (in French)</li>
<li><a rel="nofollow" class="external text" href="http://www.ieeff.org/f17magne.pdf"><i>Perec Parapheur</i>, Bernard Magné</a> (<a rel="nofollow" class="external text" href="https://web.archive.org/web/20200713075827/http://www.ieeff.org/f17magne.pdf">archive</a>)</li>
<li><a rel="nofollow" class="external text" href="https://www.liberation.fr/culture/1996/07/27/l-ecrit-touareg-du-sable-au-papierun-typographe-francais-a-retranscrit-l-alphabet-des-hommes-du-dese_176184/"><i>L'écrit touareg du sable au papier. Un typographe français a retranscrit l'alphabet des hommes du désert.</i> (Libération, in French)</a></li></ul>
<bdi><a href="https://en.wikipedia.org/wiki/en:Georges_Perec" class="extiw" title="w:en:Georges Perec"><span title="French novelist, filmmaker, documentalist, and essayist">Georges Perec</span></a>
</bdi>
<a rel="nofollow" class="external text" href="https://web.archive.org/web/20070204091523/http://www.cabinetperec.org/anciens-numeros/cabinet-1/basnoda/basnoda-annexe1.html">https://web.archive.org/web/20070204091523/http://www.cabinetperec.org/anciens-numeros/cabinet-1/basnoda/basnoda-annexe1.html</a>