Bulgarian geographer <a href="https://en.wikipedia.org/wiki/Anastas_Ishirkov" class="extiw" title="en:Anastas Ishirkov">Anastas Ishirkov</a> in Berlin.
Atelier Wertheim
before 1937 <div style="display: none;">date QS:P,+1937-00-00T00:00:00Z/7,P1326,+1937-00-00T00:00:00Z/9</div>
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