This <i>W3C-unspecified</i> <a href="https://en.wikipedia.org/wiki/Vector_images" class="extiw" title="w:Vector images">vector image</a> was created with <a href="https://en.wikipedia.org/wiki/Inkscape" class="extiw" title="w:Inkscape">Inkscape</a> .
<a href="//commons.wikimedia.org/wiki/User:F_l_a_n_k_e_r" title="User:F l a n k e r">F l a n k e r</a>
CC BY-SA 3.0
Massimo Civoli, <i>Aeroplani 1923 - 2003</i>. Gribaudo editore, <a href="//commons.wikimedia.org/wiki/Special:BookSources/88-8058-299-2" title="Special:BookSources/88-8058-299-2">ISBN 88-8058-299-2</a>