Construction of the Apex building, the future home of the Federal Trade Commission, at the corner of B Street NW (later Constitution Avenue NW) and Pennsylvania Avenue NW in Washington, D.C., in 1937.
Harris &amp; Ewing
1937
<a rel="nofollow" class="external free" href="http://hdl.loc.gov/loc.pnp/hec.23047">http://hdl.loc.gov/loc.pnp/hec.23047</a> Harris &amp; Ewing Collection, Library of Congress Prints and Photographs Division Washington, D.C.