Seems to be Opel 2 Liter
<a href="//www.flickr.com/people/30796410@N00" class="extiw" title="flickruser:30796410@N00">Lynn F</a>
CC BY 2.0
<a href="//commons.wikimedia.org/wiki/Flickr" class="mw-redirect" title="Flickr">Flickr</a>: <a rel="nofollow" class="external text" href="https://www.flickr.com/photos/30796410@N00/4053262334">WWII Museum, New Orleans, LA</a>