Panoramic view of the Barcelona Exposition, Spain. 1929.
<p>Records of the Bureau of Foreign and Domestic Commerce (151-FC-106-67)
National Archives and Records Administration
</p>
<a rel="nofollow" class="external autonumber" href="https://www.archives.gov/exhibits/panoramic_photography/images/barcelona_exposition_1929.html">[1]</a>