Cabinet card image of American opera singer Charles R. Adams (1834-1900), in costume. <a rel="nofollow" class="external text" href="http://via.lib.harvard.edu:80/via/deliver/deepLinkItem?recordId=olvwork604511&amp;componentId=FHCL.Hough:5022866">TCS 1.69, Harvard Theatre Collection</a>, Harvard University
<bdi><a href="https://www.wikidata.org/wiki/Q61985858" class="extiw" title="d:Q61985858"><span title="German American photographer">Henry Rocher</span></a>
</bdi>
1900 or earlier
<a rel="nofollow" class="external text" href="http://via.lib.harvard.edu:80/via/deliver/deepLinkItem?recordId=olvwork604511&amp;componentId=FHCL.Hough:5022866">TCS 1.69, Harvard Theatre Collection</a>, Harvard University