Three children watching the ascent of the first <a href="https://en.wikipedia.org/wiki/Zeppelin" class="extiw" title="en:Zeppelin">Zeppelin</a> airship (<a href="https://en.wikipedia.org/wiki/Zeppelin_LZ_1" class="extiw" title="en:Zeppelin LZ 1">LZ 1</a>) from the shores of <a href="https://en.wikipedia.org/wiki/Lake_Constance" class="extiw" title="en:Lake Constance">Lake Constance</a> on 2 July 1900.
Unknown author<span style="display: none;">Unknown author</span>
Archiv der Luftschiffbau Zeppelin GmbH, via <a rel="nofollow" class="external text" href="http://blog.zeppelin-museum.de/wp-content/uploads/2020/06/LZF-001-0035.jpg">zeppelin-museum.de</a>