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<p>[QUOTE=&quot;Norman Asis, post: 2845731, member: 87899&quot;]Good evening my fellow night owls. I have quick question. I have quite a few of the 1979 SBA with both S and D mint mark as well as a 1980 P, S&nbsp; and D.&nbsp; The thing I find curious is that they somehow have the same yellowish discoloration on both sides of the coin. Was it caused by how they were previously stored, or due to something environmental?</p><p>Or does it have to do with its composition? These coins were acquired from different sources: court house vending machine, cashier from a convenience store and from a bank just to name a few.</p><p>Hope to hear from you fellows. Thanks.</p><p>[ATTACH=full]674303[/ATTACH] [ATTACH=full]674304[/ATTACH] [ATTACH=full]674305[/ATTACH][/QUOTE]</p><p><br /></p>

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