<p>Stamp of the German Empire - plebiscite area "Allenstein"; definitive stamp; Germania-issue (mostly war press) from 1914/15 with black, standing oval ovewrprint of the Entente-commission<br><b>Stamp</b> Michel No. 22 <i>(= Michel No. 91IIx (war press) with overprint)</i>; Yvert &amp; Tellier, No. 22 (DR-AL); AFA: No. 22 (DR-AL)<br><b>Color</b>: violet crimson / brownblack on dull chrome yellow<br><b>Watermark</b>: Germany No. 1 (rhombs)<br><b>Nominal value</b>: 50 (Pfennig)<br></p>
<b>Postage validity</b>: from May 1920 until 20 August 1920 <div style="display: none;">date QS:P,+1920-00-00T00:00:00Z/9,P580,+1920-05-00T00:00:00Z/10,P582,+1920-08-20T00:00:00Z/11</div>
Deutsche Reichspost - "Commission d'administration et de plébiscite Olsztyn - Allenstein"
scan of original