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<p>[QUOTE=&quot;Clawcoins, post: 12366166, member: 77814&quot;]it&#039;s normally called a &quot;Floating Roof&quot; which is due to Die Maintenance where they Polish the Die (remove surface material to get rid of die deterioration such as surface scratches from the metal ingraining scratches on the flat face) making all the devices (design ) shallower and the little part between the building and roof are obliterated (from polishing) from the design.&nbsp; Thus ... a &quot;floating roof&quot; visual thing.</p><p><br /></p><p>There&#039;s a lot of surface corrosion on your cent and is very indicative of a zinc based cent .. zincoln.&nbsp; The MM looks like one of the stages of a zincoln before that area sinks from the zinc dissolving below the thin copper plating.</p><p><br /></p><p>Is that a Food Scale?&nbsp; If so go buy a Jewelry Scale that goes out to 2 or 3 decimals for grams.&nbsp; Or reset, recalibrate yours.[/QUOTE]</p><p><br /></p>

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