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<ul><li><b>Scope and content:</b>  The photograph shows two men in the Cleaning Room before three large tubs of soap and water. A collander sits on a small table in the foreground full of matrix strips (already punched out strips of gold) that are washed before being weighed. Coin trays can be seen stacked behind the young man on the left.</li></ul></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>