<div class="description">
Stamp depicts aspects of chemistry and related sciences. The design depicting a laboratory vessel is illustrative of the scientific equipment used widely for research in the chemical industry. A representative chemical plant appears in the lower part of the glass container. Glass tubing extending from the vessel encloses at enlarged ends a head of wheat to represent agriculture and a symbolic industrial plant.</div>
This file was contributed to Wikimedia Commons by <a href="https://en.wikipedia.org/wiki/en:Science_History_Institute" class="extiw" title="w:en:Science History Institute"><span title="library, museum, and archive in Philadelphia, United States">Science History Institute</span></a> as part of a cooperation project. The donation was facilitated by the <a href="https://en.wikipedia.org/wiki/Digital_Public_Library_of_America" class="extiw" title="w:Digital Public Library of America">Digital Public Library of America</a>, via its partner PA Digital.<span style="text-align:left">
<ul><li><a rel="nofollow" class="external text" href="https://digital.sciencehistory.org/works/9s1616474">Record in source catalog</a></li>
<li>DPLA identifier: <a rel="nofollow" class="external text" href="https://dp.la/item/3d491f5268e570ace6ca1eed5795c18c">3d491f5268e570ace6ca1eed5795c18c</a></li>
<li>Science History Institute identifier: padig:SHI-9s1616474</li></ul></span>