<p>Stamp of the German Empire - German occupation areas 1914/18 - Poland; definitive stamp: Germania-issue (war press) with black, two lines overprint in German letters "Gen.-Gouv. / Warschau" for the "General-Gouvernement Warschau", striped background<br><b>Stamp</b>: Michel: No. 15b <i>(= German Empire, Nr. 90IIb (1914) with overprint)</i>; Yvert &amp; Tellier: No. 15 (Poland, PL-OA)<br><b>Color</b>: lilac red / brownblack or black<br><b>Watermark</b>: Germany No. 1 (rhombs)<br><b>Nominal value</b>: 40 (Pfennig)<br></p>
<b>Postage validity</b>: from 1 August 1916 until 28 December 1918 <div style="display: none;">date QS:P,+1916-00-00T00:00:00Z/8,P580,+1916-08-01T00:00:00Z/11,P582,+1918-12-28T00:00:00Z/11</div><br><b>Postmark</b>: Warschau, <time class="dtstart" datetime="1917-10-25" lang="en" dir="ltr" style="white-space:nowrap">25 October 1917</time>
Deutsche Reichspost - Deutsche Post in Polen
scan of original