Cover art by P. J. Monahan from <i>Thuvia, Maid of Mars </i> by <a href="https://en.wikipedia.org/wiki/Edgar_Rice_Burroughs" class="extiw" title="en:Edgar Rice Burroughs">Edgar Rice Burroughs</a>, <a href="https://en.wikipedia.org/wiki/McClurg" class="extiw" title="en:McClurg">McClurg</a>, 1920.
<bdi><a href="https://www.wikidata.org/wiki/Q83191783" class="extiw" title="d:Q83191783"><span title="Pulp artist (1882-1931)">P. J. Monahan</span></a>
</bdi>
Art initially published in 1920
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