"Vintage smut". Photograph of two women in bed, mostly nude other than striped socks; one also wears shoes.
Unknown author<span style="display: none;">Unknown author</span>
1883
Rod Ashford. <i>Erotique: Masterpieces of Erotic Photography</i>. Thunder. <a href="//commons.wikimedia.org/wiki/Special:BookSources/1560251689" title="Special:BookSources/1560251689">ISBN 1560251689</a>.