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<p>[QUOTE=&quot;Electron John, post: 2625013, member: 84417&quot;][ATTACH=full]576466[/ATTACH] [ATTACH=full]576467[/ATTACH] I got a few 1916 German East Africa (DOA) 20 Heller coins but this Type A-A Brass is the most interesting of the lot to me.&nbsp; It look like it may be a heterogeneous Brass Copper mix.&nbsp; I will do some analysis on it when I have the time (maybe tomorrow) to see if the yellowish spots are brass (Cu and Zn) and the copper color spots are just Cu.&nbsp; I have never read about that being documented but it seems possible to me considering the conditions these coins were made in.[/QUOTE]</p><p><br /></p>

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