Serbian artilery in siege of Adrianople 1913 (First Balkan war).
Unknown author<span style="display: none;">Unknown author</span>
1913
<a rel="nofollow" class="external free" href="http://digital.nb.rs/scc/direct.php?sign=RG-1158-011">http://digital.nb.rs/scc/direct.php?sign=RG-1158-011</a>