<div class="description">
Broadside announcing a navigable balloon design invented by M. d'Helle. Includes a picture of d'Helle's propeller-powered balloon.</div>
between 1840 and 1890 <div style="display: none;">date QS:P571,+1850-00-00T00:00:00Z/7,P1319,+1840-00-00T00:00:00Z/9,P1326,+1890-00-00T00:00:00Z/9</div>
<a rel="nofollow" class="external free" href="https://www.loc.gov/pictures/item/2002724884">https://www.loc.gov/pictures/item/2002724884</a>