Log in or Sign up
Coin Talk
Home
Forums
>
Coin Forums
>
Error Coins
>
unusually thick 1968 us quarter
>
Reply to Thread
Message:
<p>[QUOTE="-jeffB, post: 2038218, member: 27832"]Well, I'll defer to Mike Diamond every time. <img src="styles/default/xenforo/clear.png" class="mceSmilieSprite mceSmilie1" alt=":)" unselectable="on" unselectable="on" /></p><p><br /></p><p>That being said, though, the blurry edge-on photo still looks like a sandwich coin to me. Here's a "sharpened" and contrast-stretched crop of the image:</p><p><br /></p><p>[ATTACH=full]371728[/ATTACH] </p><p><br /></p><p>Now, I know that all sorts of odd things can happen as a clad surface layer gets dragged across the edge of the coin during striking, but I don't think I've ever seen this "double Oreo" effect. Note the distinct bright layer consistently stretching along the middle of the edge, not sloping toward either face. And look at the reeds in the middle of the image -- I see a distinct "twist", as though the top half of the coin has been slightly rotated clockwise relative to the bottom half.</p><p><br /></p><p>I'd love to see a well-focused image of those reeds, although that might be a tough shot to get. My suspicion is that we'd see a well-defined discontinuity at the middle of the edge, maybe even a visible seam.</p><p><br /></p><p>It's certainly <i>possible</i> that this is a rolled-thick example; I've never seen one, so I know nothing about their characteristics. It's hard for me to imagine, though, how you'd get slanted/twisted reeds, assuming that's what the photo actually shows. It's also hard to imagine that you'd get that middle bright layer, although I'm on even shakier ground there.</p><p><br /></p><p>Mike, have you seen these actual effects on a rolled-thick-stock coin, or are you thinking they're just artifacts of a blurry image?[/QUOTE]</p><p><br /></p>
[QUOTE="-jeffB, post: 2038218, member: 27832"]Well, I'll defer to Mike Diamond every time. :) That being said, though, the blurry edge-on photo still looks like a sandwich coin to me. Here's a "sharpened" and contrast-stretched crop of the image: [ATTACH=full]371728[/ATTACH] Now, I know that all sorts of odd things can happen as a clad surface layer gets dragged across the edge of the coin during striking, but I don't think I've ever seen this "double Oreo" effect. Note the distinct bright layer consistently stretching along the middle of the edge, not sloping toward either face. And look at the reeds in the middle of the image -- I see a distinct "twist", as though the top half of the coin has been slightly rotated clockwise relative to the bottom half. I'd love to see a well-focused image of those reeds, although that might be a tough shot to get. My suspicion is that we'd see a well-defined discontinuity at the middle of the edge, maybe even a visible seam. It's certainly [I]possible[/I] that this is a rolled-thick example; I've never seen one, so I know nothing about their characteristics. It's hard for me to imagine, though, how you'd get slanted/twisted reeds, assuming that's what the photo actually shows. It's also hard to imagine that you'd get that middle bright layer, although I'm on even shakier ground there. Mike, have you seen these actual effects on a rolled-thick-stock coin, or are you thinking they're just artifacts of a blurry image?[/QUOTE]
Your name or email address:
Do you already have an account?
No, create an account now.
Yes, my password is:
Forgot your password?
Stay logged in
Coin Talk
Home
Forums
>
Coin Forums
>
Error Coins
>
unusually thick 1968 us quarter
>
Home
Home
Quick Links
Search Forums
Recent Activity
Recent Posts
Forums
Forums
Quick Links
Search Forums
Recent Posts
Competitions
Competitions
Quick Links
Competition Index
Rules, Terms & Conditions
Gallery
Gallery
Quick Links
Search Media
New Media
Showcase
Showcase
Quick Links
Search Items
Most Active Members
New Items
Directory
Directory
Quick Links
Directory Home
New Listings
Members
Members
Quick Links
Notable Members
Current Visitors
Recent Activity
New Profile Posts
Sponsors
Menu
Search
Search titles only
Posted by Member:
Separate names with a comma.
Newer Than:
Search this thread only
Search this forum only
Display results as threads
Useful Searches
Recent Posts
More...