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<p>[QUOTE=&quot;medoraman, post: 1327891, member: 26302&quot;]Good posts, I agree as well its not cast. What I do if I am wondering if its casting bubbles is look at the bubbles under 32x magnification using my stereo microscope. Casting bubbles are just that, bubbles. They are air comnig to the surface, and as such usually will not be perfectly round, with many or most having a hole where the air escaped out of the bubble. Look at a cast coin that has air bubbles sometime under high power and see what I mean. Look at one bubble, and turn it around and usually you can see a open spot where the air escaped. Sometimes not, so one bubble cannot prove this, but if you see at least a few like this on a coin its proving its not rust, but casting bubbles. </p><p><br /></p><p>Having said that, I believe yours is die rust. <img src="styles/default/xenforo/clear.png" class="mceSmilieSprite mceSmilie1" alt=":)" unselectable="on" unselectable="on" /> Like you said, the edges are the hard parts on these.</p><p><br /></p><p>Chris[/QUOTE]</p><p><br /></p>

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