Overzicht vliegveld WaalHaven, 1922
Unknown author<span style="display: none;">Unknown author</span>
1920s pictures (found online in F. Zandvliet. "<a rel="nofollow" class="external text" href="http://rjb.x-cago.com/GARJB/1984/12/19841231/GARJB-19841231-0345/story.pdf">Vliegveld Waalhaven</a>," in: Rotterdamsch Jaarboekje, 1983. p. 345-359 at rjb.x-cago.com)