This is the <a href="//commons.wikimedia.org/wiki/Coat_of_arms" class="mw-redirect" title="Coat of arms">coat of arms</a> of the <a href="//commons.wikimedia.org/w/index.php?title=Linnean_Society_of_London&amp;action=edit&amp;redlink=1" class="new" title="Linnean Society of London (page does not exist)">Linnean Society of London</a>, as it appeared on the title page of <i>Transactions of the Linnean Society of London</i> <b>10</b> (1811).
Unknown author<span style="display: none;">Unknown author</span>
The website of the Biodiversity Heritage Library, specifically <a rel="nofollow" class="external free" href="https://www.biodiversitylibrary.org/item/13720">https://www.biodiversitylibrary.org/item/13720</a>