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<p>[QUOTE=&quot;kanga, post: 4855141, member: 9270&quot;]During WWII the Japanese had occupied an portion of China, essentially Manchuria but called Manchukuo (or Manchoukuo).</p><p>As the war continued, it put a strain metals of military and economic significance (copper, nickel and silver in particular).</p><p>Because of that n some places coins were being struck on less strategic materials.</p><p>Zinc was the most prominent of those although iron and steel were used.</p><p><br /></p><p>In 1944 and 1945 in the Japanese occupied area of China (Manchuria) coins were struck on what the Krause catalog calls &quot;red fiber&quot;.</p><p>It was actually magnesite.</p><p>&quot;Magnesite is a mineral with the chemical formula MgCO<font size="2">3</font> (magnesium carbonate). Iron, manganese, cobalt and nickel may occur as admixtures, but only in small amounts.&quot;</p><p><br /></p><p>Here&#039;s an example:</p><p><img src="http://www.dcderoo.com/China-1945-5Fen-adj.jpg" class="bbCodeImage wysiwygImage" alt="" unselectable="on" /> </p><p><br /></p><p>I&#039;m sure through history other materials have been used.</p><p>Ceramic comes to mind from somewhere.</p><p><br /></p><p>Add to this post, particularly with pictures.[/QUOTE]</p><p><br /></p>

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