Columbian Issue
...that the Columbian Issue, the first U.S. commemorative postage stamps, included the first female portrait on American postage — Spain's Queen Isabella?
...that the <b id="mwBpc"><a href="./Columbian_Issue" id="mwBpg" rel="mw:WikiLink" title="Columbian Issue">Columbian Issue</a></b>, the first <a href="./United_States" id="mwBpk" rel="mw:WikiLink" title="United States">U.S.</a> <a href="./Commemorative_stamp" id="mwBpo" rel="mw:WikiLink" title="Commemorative stamp">commemorative</a> <a class="mw-redirect" href="./Postage_stamps" id="mwBps" rel="mw:WikiLink" title="Postage stamps">postage stamps</a>, included the first female portrait on American postage <span id="mwBpw" typeof="mw:Entity">—</span> <a href="./Spain" id="mwBp0" rel="mw:WikiLink" title="Spain">Spain</a>'s <a class="mw-redirect" href="./Isabella_of_Castile" id="mwBp4" rel="mw:WikiLink" title="Isabella of Castile">Queen Isabella</a>?