Second prototype of PZL P.11 fighter. From left: Jerzy Bajan and Bolesław Orliński.
Unknown author<span style="display: none;">Unknown author</span>
<a rel="nofollow" class="external text" href="https://audiovis.nac.gov.pl/obraz/195065/c81de5eab3ec5a99b485a8bf05275ae0/">Narodowe Archiwum Cyfrowe</a> (National Digital Archives Poland)