Self-portrait daguerreotype made by Robert Cornelius (1809 - 1893), probably in October or November 1839. Made with an improvised camera obscura. Exposure time around 10 minutes. Believed to be the first successful photographic self-portrait ever made in North America.
<bdi><a href="https://en.wikipedia.org/wiki/en:Robert_Cornelius" class="extiw" title="w:en:Robert Cornelius"><span title="American photographer and lamp manufacturer">Robert Cornelius</span></a>
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Oct. or Nov. 1839
Stapp, W. (1983). <i>Robert Cornelius - portraits from the dawn of Photography.</i> National Portrait Gallery.