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<ul><li><b>Scope and content:</b>  Original Caption: Manufacturing Boyce Moto-Meters Distance type, for the government at the Boyce Moto-Meter Plant, Long Island, N.Y.  Apparatus for evacuating the instrument after which it is filled under pressure with alcohol to the desired pressure.  After this filling is completed, the instruments are sealed with an oxy-acetylene torch and placed in the testing baths.</li></ul>
Photographer: Boyce Moto-Meter Plant</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>