A 3/4 front view of the de Pischoff Avionette
Unknown author<span style="display: none;">Unknown author</span>
1921-01-20
<b>Flight</b>, 20 January 1921, <a rel="nofollow" class="external text" href="https://www.flightglobal.com/pdfarchive/view/1921/1921%20-%200039.html?search=Pischof">page 39</a>