Publicity photo of <i>The Defenders</i>.  The cast in this photo are <a href="https://en.wikipedia.org/wiki/E._G._Marshall" class="extiw" title="w:E. G. Marshall">E. G. Marshall</a> and <a href="//commons.wikimedia.org/wiki/Robert_Reed" title="Robert Reed">Robert Reed</a>.
CBS Television
Stamped dates on the back photo have been "Oct 23 1961" and "Jan 27 1963".  Possibly shot in 1961; purpose of the other date unknown.
For the promotion of the television show <i>The Defenders</i>.  Downloaded from eBay: <a rel="nofollow" class="external text" href="http://www.ebay.com/itm/1961-E-G-Marshall-Robert-Reed-Defenders-Photo-/250900466306?pt=Art_Photo_Images&amp;hash=item3a6ad54a82">item</a>, <a rel="nofollow" class="external text" href="http://i.ebayimg.com/t/1961-E-G-Marshall-Robert-Reed-Defenders-Photo-/00/%24(KGrHqUOKpgE4k2HTDgBBOPCnLujUQ~~_3.JPG">front</a>, <a rel="nofollow" class="external text" href="http://i.ebayimg.com/t/1961-E-G-Marshall-Robert-Reed-Defenders-Photo-/00/%24(KGrHqQOKm8E4TKjQZhIBOPCnSWjPg~~_3.JPG">back</a>