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<p>[QUOTE=&quot;blackarrow, post: 3219362, member: 98651&quot;]Hello,</p><p><br /></p><p>since I am currently interested in the Third Reich era in Europe (quite dark period of time with interesting coins nevertheless), I come across many coins not made of silver but other materials which were cheaper to obtain. This is the case with mostly all of German coins in this era, excluding 2 and 5 Reichsmark. Moreover, it is the case with huge number of counties that were under German occupation during WW2. I know that zinc coins are not made to be circulated long, more like emergency measure. Among others, I have few serbian coins made of zinc, and german 50 Reichspfennig made of aluminium:</p><p><br /></p><p>[ATTACH]837769[/ATTACH] [ATTACH]837770[/ATTACH] [ATTACH]837771[/ATTACH] [ATTACH]837772[/ATTACH]</p><p><br /></p><p>However, I am not sure how to grade them (there are pretty much worthless, but that is not important now). I found guides and videos on Youtube, but they are mostly on silver. For examples, the first coins look pretty bad (oxidation?), and the last one has some strange kind of corrosion inside 0 number and pfe letters. It seems I need to educate myself more about basic metals and chemical reactions <img src="styles/default/xenforo/clear.png" class="mceSmilieSprite mceSmilie1" alt=":)" unselectable="on" unselectable="on" /></p><p><br /></p><p>In other words, not sure what is important when looking for coins which are not made of silver.[/QUOTE]</p><p><br /></p>

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