"Female Opinions on Military Tactics", a 1790s caricature engraved by Isaac Cruikshank.  Despite the title, this doesn't really mock feminine ignorance of military matters, but instead derives its humor from situations involving inexperienced soldiers of the militia or volunteers -- and adds in a good number of double entendres.  Said to be dated Sept. 30 1790, but date might have been misread, since the young women's clothing styles suggest a few years later than that.
<bdi><a href="https://en.wikipedia.org/wiki/en:Isaac_Cruikshank" class="extiw" title="w:en:Isaac Cruikshank"><span title="Scottish painter and caricaturist (died 1811)">Isaac Cruikshank</span></a>
</bdi>
30 September 1798<div style="display: none;">date QS:P571,+1798-09-30T00:00:00Z/11</div>
scanned by H. Churchyard