<a href="https://en.wikipedia.org/wiki/ambigram" class="extiw" title="en:ambigram">Ambigram</a> <i>Puzzle / the end</i> by <a href="https://en.wikipedia.org/wiki/Peter_Newell" class="extiw" title="en:Peter Newell">Peter Newell</a>. 180° rotational symmetry. Reversible calligraphy published in 1893 in the book <i>Topsys and turvys</i>. Publisher: <i>Century Company</i>, New York. <i>Gast Lithograph &amp; Engraving Company</i>, printer. Subject Headings: Upside-down books Specimens. Genre: Juvenile literature (1893). Notes: Printer named on leaf 31.
<a href="https://en.wikipedia.org/wiki/Peter_Newell" class="extiw" title="en:Peter Newell">Peter Newell</a>
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