Louisiana Purchase Exposition dollar
... that the Louisiana Purchase Exposition dollar was the first U.S. commemorative gold piece?
... that the <b id="mwAfs"><a class="mw-redirect" href="./Louisiana_Purchase_Exposition_dollar" id="mwAfw" rel="mw:WikiLink" title="Louisiana Purchase Exposition dollar">Louisiana Purchase Exposition dollar</a></b> was the first U.S. commemorative gold piece?