Bleriot SPAD S.56 3-view drawing from Les Ailes December 1,1927
Les Ailes newspaper
1927-12-01
<a rel="nofollow" class="external free" href="https://gallica.bnf.fr/ark:/12148/bpt6k6568369k/f3.item">https://gallica.bnf.fr/ark:/12148/bpt6k6568369k/f3.item</a>