<p>Stamp of the German Empire - plebiscite area "Oberschlesien" (Polish: "Górny Sląsk", French: "Haute Silesie", English: "Upper Silesia"), South Prussia, definitive stamp from 1922 = definitive stamp series from 1920 in color changes and with black single-line overprint of a new currency value ("4 M")<br><b>Stamp</b>: Michel: No. 41; Yvert &amp; Tellier: No. 59 (DR-OS)<br><b>Color</b>: grey-olive to olivegreen with black overprint<br><b>Watermark</b>: none<br><b>Nominal value</b>: 4 M (Mark) on 60 Pf. (Pfennig)<br></p>
<b>Postage validity</b>: from March 1922 until 15 June 1922 <div style="display: none;">date QS:P,+1922-00-00T00:00:00Z/9,P580,+1922-03-00T00:00:00Z/10,P582,+1922-06-15T00:00:00Z/11</div>
"Commission interallié de gouvernement - Haute Silesie"
scan of original