<a href="https://en.wikipedia.org/wiki/Frank_W._Caldwell" class="extiw" title="w:Frank W. Caldwell">Frank W. Caldwell</a> is congratulated by President <a href="https://en.wikipedia.org/wiki/Franklin_Delano_Roosevelt" class="extiw" title="w:Franklin Delano Roosevelt">Franklin D. Roosevelt</a> on the award of the Collier Trophy (visible in the background) in 1933 for his work with Hamilton Standard on the controllable-pitch propeller.  NASM-NAM-A-48118
Unknown author<span style="display: none;">Unknown author</span>
1933
<a rel="nofollow" class="external free" href="https://airandspace.si.edu/collection-objects/caldwell-frank-w-roosevelt-franklin-delano-president-awards-and-trophies-collier">https://airandspace.si.edu/collection-objects/caldwell-frank-w-roosevelt-franklin-delano-president-awards-and-trophies-collier</a>