The Camel Corps at Beersheba, 1915.  Cropped image downloaded from the source listed below.
<a rel="nofollow" class="external text" href="http://lcweb2.loc.gov/pp/matpchtml/matpcac.html">American Colony Photo Department</a>
Library of Congress, reproduction number LC-DIG-ppmsca-13709-00037 (digital file from original on page 10, no.36).  <a rel="nofollow" class="external free" href="http://memory.loc.gov/pnp/ppmsca/13700/13709/00037v.jpg">http://memory.loc.gov/pnp/ppmsca/13700/13709/00037v.jpg</a>.  Full image source and caption at <a rel="nofollow" class="external free" href="http://memory.loc.gov/phpdata/pageturner.php?type=contactminor&amp;cmIMG1=/pnp/ppmsca/13700/13709/00037t.gif&amp;agg=ppmsca&amp;item=13709&amp;caption=36">http://memory.loc.gov/phpdata/pageturner.php?type=contactminor&amp;cmIMG1=/pnp/ppmsca/13700/13709/00037t.gif&amp;agg=ppmsca&amp;item=13709&amp;caption=36</a>.