The Portrait of Former United States President Andrew Johnson returned to the Senate in 1875, (age 66).
Unknown author<span style="display: none;">Unknown author</span>
1875-03-05
<a rel="nofollow" class="external free" href="http://www.picturehistory.com/product/id/12185">http://www.picturehistory.com/product/id/12185</a>.  Note that this is a formal portrait of a prominent politician, taken right before he took his Senate seat on March 5, and was undoubtedly published at the time for use as a recent portrait of Johnson. Specific evidence of contemporaneous publication is not needed.