The signature of the Greek politician and poet Alexandros (Alekos) Panagoulis.
<bdi><a href="https://en.wikipedia.org/wiki/en:Alexandros_Panagoulis" class="extiw" title="w:en:Alexandros Panagoulis"><span title="Greek politician and poet (1939-1976)">Alexandros Panagoulis</span></a>
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Signed photo // Υπογεγραμμένη φωτογραφία