Budd Company photo of the medallion attached to the observation car of the Mark Twain Zephyr. The observation car had the <a rel="nofollow" class="external text" href="http://digital.hannibal.lib.mo.us/mtz/Z7060.htm">medallion</a> and a facsimile signature of Mark Twain at the back.
Photo by the Budd Company.  The creator of the plaque is unknown.
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