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What is going on with surface of this 1930 Buffalo?
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<p>[QUOTE="Insider, post: 2541833, member: 24314"][USER=15309]@Lehigh96[/USER] is a nickel expert and a metallurgist. Maybe he has an idea.</p><p><br /></p><p>Then before he tells us what happened, here is what I'll GUESS w/reasons. </p><p><br /></p><p>#3. Struck thru. This was my first impression; and most likely; however, I can't think of anything at the Mint that would cause this appearance or spread the effect all over.</p><p><br /></p><p>#4. Acid Etch. I quickly changed my original thought to an etched surface because there appears to be a "curved flow" in the middle of the head and across the feathers. Often when acid is applied to a coin it exposes the underlying crystalized surface. A War nickel on a split planchet has waves that line up parallel - just not as close as these do.</p><p><br /></p><p>#5. Struck on flawed or defective Planchet. Based on what I see and what I ruled out, <span style="color: #ff0000">this is my choice. </span>The "kicker" was this: </p><p><br /></p><p>Note that the characteristic roughness lines up horizontally <span style="color: #b300b3"><span style="color: #000000">wherever it is visible - on the rim above "Liberty" and across the face. Down the feather and under the bust. IMO, a struck thru would not do this leaving a large space in between.</span> </span></p><p><span style="color: #b300b3"><br /></span></p><p><span style="color: #b300b3">Now, I shall change my mind - again <img src="styles/default/xenforo/clear.png" class="mceSmilieSprite mceSmilie46" alt=":facepalm:" unselectable="on" unselectable="on" /><img src="styles/default/xenforo/clear.png" class="mceSmilieSprite mceSmilie90" alt=":spitoutdummy:" unselectable="on" unselectable="on" /> rather than type a new post. I choose #4 "<span style="color: #006600">Chemically Altered Surface.</span>" <img src="styles/default/xenforo/clear.png" class="mceSmilieSprite mceSmilie11" alt=":rolleyes:" unselectable="on" unselectable="on" /><img src="styles/default/xenforo/clear.png" class="mceSmilieSprite mceSmilie12" alt="o_O" unselectable="on" unselectable="on" /></span></p><p><br /></p><p><span style="color: #000000">Bottom line [USER=6763]@Treashunt[/USER] I don't know nothing for sure <span style="color: #b300b3">except I want the coin</span>!<img src="styles/default/xenforo/clear.png" class="mceSmilieSprite mceSmilie8" alt=":D" unselectable="on" unselectable="on" /></span>[/QUOTE]</p><p><br /></p>
[QUOTE="Insider, post: 2541833, member: 24314"][USER=15309]@Lehigh96[/USER] is a nickel expert and a metallurgist. Maybe he has an idea. Then before he tells us what happened, here is what I'll GUESS w/reasons. #3. Struck thru. This was my first impression; and most likely; however, I can't think of anything at the Mint that would cause this appearance or spread the effect all over. #4. Acid Etch. I quickly changed my original thought to an etched surface because there appears to be a "curved flow" in the middle of the head and across the feathers. Often when acid is applied to a coin it exposes the underlying crystalized surface. A War nickel on a split planchet has waves that line up parallel - just not as close as these do. #5. Struck on flawed or defective Planchet. Based on what I see and what I ruled out, [COLOR=#ff0000]this is my choice. [/COLOR]The "kicker" was this: Note that the characteristic roughness lines up horizontally [COLOR=#b300b3][COLOR=#000000]wherever it is visible - on the rim above "Liberty" and across the face. Down the feather and under the bust. IMO, a struck thru would not do this leaving a large space in between.[/COLOR] [/COLOR] [COLOR=#b300b3] Now, I shall change my mind - again :facepalm::spitoutdummy: rather than type a new post. I choose #4 "[COLOR=#006600]Chemically Altered Surface.[/COLOR]" :rolleyes:o_O[/COLOR] [COLOR=#b300b3][/COLOR] [COLOR=#000000]Bottom line [USER=6763]@Treashunt[/USER] I don't know nothing for sure [COLOR=#b300b3]except I want the coin[/COLOR]!:D[/COLOR][/QUOTE]
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What is going on with surface of this 1930 Buffalo?
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