<div class="description">
The "Periodic Round Table" looks like a multi-layered cake. There are eight wooden layers that sit on top of one another and can be rotated. Layers are divided into chemical elements with engraved element name and number. Game comes with an instruction pamphlet. Cardboard box whose top and bottom flaps can be opened. Top side flaps are designed to hold the device into place.</div>
1995<div style="display: none;">date QS:P571,+1995-00-00T00:00:00Z/9</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/5138jg123">Record in source catalog</a></li>
<li>DPLA identifier: <a rel="nofollow" class="external text" href="https://dp.la/item/c18d8953a35be54ebb63ba3e25825ef2">c18d8953a35be54ebb63ba3e25825ef2</a></li>
<li>Science History Institute identifier: padig:SHI-5138jg123</li></ul></span>