Side view of French D-2 tank in US Army Field Manual 30-42
US War Department
<a rel="nofollow" class="external text" href="http://cgsc.contentdm.oclc.org/cdm/ref/collection/p4013coll9/id/852">FM 30-42 1941 (OBSOLETE) : Basic field manual, military intelligence, identification of foreign armored vehicles, German, Japanese, Russian, Italian, and French</a>