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<p>[QUOTE="jtlee321, post: 2542351, member: 73983"]I really enjoy this. Insider you a very cool guy and are fun to debate back and forth with. Here is an image I just made to show how the "luster" from the original un-affected surface and the affected area with the striations is continuous and uninterrupted. It is more difficult to see and convey using an image, but under a strong loupe, it is plain as day. The "luster" in the striated areas is not just reflections on the metal. Luster is the microscopic ridges in the surface of a coin running from the center to the rims caused by the metal being squeezed by immense pressure and forced to flow from the center out to the rims. It's why an uncirculated coin has a cartwheel effect. I know you know this, and I want you to know that I know this.</p><p><br /></p><p>I'm glad that [USER=75143]@hotwheelsearl[/USER] chimed in with the vinegar comments. As that is where I was going next. We have all seen what a dateless buffalo looks like that has had vinegar or nic-a-date applied to it to reveal a date. The area affected has a flat dull look compared to the surrounding area. One would expect that the affected area of the coin that is the subject of this post to have a dull nearly lifeless look to it had it been etched by acid or some other form of corrosive post strike. But that dull lifeless look is not present here. The peaks and valleys of the affected area have exactly the same qualities in the as do the surrounding un-affected surfaces. If you could examine this coin and move it around under high powered magnification, you would see that the "luster" is uninterrupted from at the transitional areas.</p><p><br /></p><p>Here is the image to try to see what I see.</p><p><br /></p><p>[ATTACH=full]544974[/ATTACH][/QUOTE]</p><p><br /></p>
[QUOTE="jtlee321, post: 2542351, member: 73983"]I really enjoy this. Insider you a very cool guy and are fun to debate back and forth with. Here is an image I just made to show how the "luster" from the original un-affected surface and the affected area with the striations is continuous and uninterrupted. It is more difficult to see and convey using an image, but under a strong loupe, it is plain as day. The "luster" in the striated areas is not just reflections on the metal. Luster is the microscopic ridges in the surface of a coin running from the center to the rims caused by the metal being squeezed by immense pressure and forced to flow from the center out to the rims. It's why an uncirculated coin has a cartwheel effect. I know you know this, and I want you to know that I know this. I'm glad that [USER=75143]@hotwheelsearl[/USER] chimed in with the vinegar comments. As that is where I was going next. We have all seen what a dateless buffalo looks like that has had vinegar or nic-a-date applied to it to reveal a date. The area affected has a flat dull look compared to the surrounding area. One would expect that the affected area of the coin that is the subject of this post to have a dull nearly lifeless look to it had it been etched by acid or some other form of corrosive post strike. But that dull lifeless look is not present here. The peaks and valleys of the affected area have exactly the same qualities in the as do the surrounding un-affected surfaces. If you could examine this coin and move it around under high powered magnification, you would see that the "luster" is uninterrupted from at the transitional areas. Here is the image to try to see what I see. [ATTACH=full]544974[/ATTACH][/QUOTE]
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What is going on with surface of this 1930 Buffalo?
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