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Black spots on BU collection
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<p>[QUOTE="Insider, post: 2481498, member: 24314"]1. they look black in almost all cases <span style="color: #b30059">That's not good.</span></p><p><br /></p><p>2. yes <span style="color: #b30059">Small "raised" spots indicate corrosion and that the surface under them has been etched.</span></p><p><br /></p><p>3. they all look like BU or PL - shiny and reflective <span style="color: #b30059">This is also not good. Original BU commemorative of this time period (with few exceptions) should look frosty white like a CC Morgan dollar still sealed in a government issued case.</span></p><p><br /></p><p>confined. <span style="color: #b30059">Corrosion. </span></p><p><span style="color: #b30059"><br /></span></p><p><span style="color: #b30059">Did you purchase them as a set or assemble them? If you bought a few at a time from different sources, chances are you will have some that are original with spots and many (the shiny ones) that were cleaned and spotted.</span></p><p><span style="color: #b30059"><br /></span></p><p><span style="color: #b30059">Anything on the rim and edge can be removed with no harm and will be undetectable even using magnification. The spots on the surfaces will be a problem. Depending what your photos show, it may not be worth conserving some of them.<img src="styles/default/xenforo/clear.png" class="mceSmilieSprite mceSmilie3" alt=":(" unselectable="on" unselectable="on" /></span></p><p><br /></p><p>My best description is like corrosion or black mold. Some are tiny spots, some are larger and irregular, some are discoloration on the edge.[/QUOTE]</p><p><br /></p>
[QUOTE="Insider, post: 2481498, member: 24314"]1. they look black in almost all cases [COLOR=#b30059]That's not good.[/COLOR] 2. yes [COLOR=#b30059]Small "raised" spots indicate corrosion and that the surface under them has been etched.[/COLOR] 3. they all look like BU or PL - shiny and reflective [COLOR=#b30059]This is also not good. Original BU commemorative of this time period (with few exceptions) should look frosty white like a CC Morgan dollar still sealed in a government issued case.[/COLOR] confined. [COLOR=#b30059]Corrosion. Did you purchase them as a set or assemble them? If you bought a few at a time from different sources, chances are you will have some that are original with spots and many (the shiny ones) that were cleaned and spotted. Anything on the rim and edge can be removed with no harm and will be undetectable even using magnification. The spots on the surfaces will be a problem. Depending what your photos show, it may not be worth conserving some of them.:([/COLOR] My best description is like corrosion or black mold. Some are tiny spots, some are larger and irregular, some are discoloration on the edge.[/QUOTE]
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Black spots on BU collection
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