<div class="description">
<ul><li><b>Scope and content:</b>  Original Caption: Carnegie Institute of Technology.  Enlisted men taking instruction in the maintenance and repair of airplane motors.  A new detachment is sent to the Carnegie Institute of Technology, Pittsburgh, Pa., every month from Kelly Field, San Antonio, by the Chief Signal Officer.  Air Enlisted Mechanics Division Course lasts one month. 1918.</li></ul>
Date Taken: 1918</div>
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Unknown author<span style="display: none;">Unknown author</span> or not provided</div>
<a href="https://en.wikipedia.org/wiki/U.S._National_Archives_and_Records_Administration" class="extiw" title="en:U.S. National Archives and Records Administration">U.S. National Archives and Records Administration</a>