These are four proposals for CAPTOR mine, received from General Motors, Goodyear, Honeywell, and Lockheed Missiles and Space respectively (shown here left to right), sorted in four categories: 1) cost, 2) management, 3) fabrication, and 4) technical. This photo was taken before the best and final offers were received and the proposals were reevaluated.
Department of the Navy
<a rel="nofollow" class="external text" href="https://books.google.com/books?id=Wb8h9dFIn-oC&amp;pg=PA2951">Fiscal Year 1973 Authorization for Military Procurement</a>, Pt. 5, Page 2951