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<p>[QUOTE="John Burgess, post: 4887408, member: 105098"]I'm having a hard time finding the information for the innovation dollars, but previous dollar coins with edge lettering, the proofs are single struck with a segmented collar, there's 3 die pieces and you can see the line where the die pieces meet on the edge of the coin.</p><p><br /></p><p>For P+D dollars, the coin is struck then they are run through an edge lettering machine after the strike in a 2 step process.</p><p><br /></p><p>My opinion, this could be struck through debris in the edge lettering machine step,</p><p><br /></p><p>But currently I can't confirm they are still doing it this way for the P and D mintmarked coins.</p><p><br /></p><p>As I understood it, the circulation strikes and mint set examples P+D of edge lettered dollar coins were struck first for obverse and reverse in the press with a blank collar, then they are run through a 2nd machine that does the edge lettering.</p><p><br /></p><p>and it's only a single step process for the proof coins, because the collar dies that put on the edge lettering at the same time, break so frequently the results are better for the proof edge lettering but it's a slower process to change the collar dies so much.</p><p><br /></p><p>Found it, Coin news article:</p><p><br /></p><p>"Dollar coins are processed through an extra step. They are made using two stand-alone coining presses which are not on the production lines. After the dollar coins are struck, they are quickly fed through a RS 50 machine which places the edge lettering on each coin. A die segment, like the one below, are inside the machine. Each coin is rolled over the lettered-groove on the die segment at a pace of 1000 coins per minute."</p><p><br /></p><p><a href="http://www.coinnews.net/wp-content/uploads/2013/09/Dollar-Coin-Edge-Letter-Segment.jpg" target="_blank" class="externalLink ProxyLink" data-proxy-href="http://www.coinnews.net/wp-content/uploads/2013/09/Dollar-Coin-Edge-Letter-Segment.jpg" rel="nofollow"><img src="https://www.coinnews.net/wp-content/uploads/2013/09/Dollar-Coin-Edge-Letter-Segment-510x256.jpg" class="bbCodeImage wysiwygImage" alt="" unselectable="on" /></a></p><p><br /></p><p>Until proven otherwise, I am assuming they still do it this same way.</p><p>lets say a piece of metal fragment gets in there with the coin, and there you go.</p><p><br /></p><p>What is the orientation of the lettering on this (head up or tails up reading?) and does it wrap from the edge to the rim of the coin also? Does it correspond to what appears in the picture to be an indent on the obverse below the statue of liberty, just past 6 o'clock on the rim?[/QUOTE]</p><p><br /></p>
[QUOTE="John Burgess, post: 4887408, member: 105098"]I'm having a hard time finding the information for the innovation dollars, but previous dollar coins with edge lettering, the proofs are single struck with a segmented collar, there's 3 die pieces and you can see the line where the die pieces meet on the edge of the coin. For P+D dollars, the coin is struck then they are run through an edge lettering machine after the strike in a 2 step process. My opinion, this could be struck through debris in the edge lettering machine step, But currently I can't confirm they are still doing it this way for the P and D mintmarked coins. As I understood it, the circulation strikes and mint set examples P+D of edge lettered dollar coins were struck first for obverse and reverse in the press with a blank collar, then they are run through a 2nd machine that does the edge lettering. and it's only a single step process for the proof coins, because the collar dies that put on the edge lettering at the same time, break so frequently the results are better for the proof edge lettering but it's a slower process to change the collar dies so much. Found it, Coin news article: "Dollar coins are processed through an extra step. They are made using two stand-alone coining presses which are not on the production lines. After the dollar coins are struck, they are quickly fed through a RS 50 machine which places the edge lettering on each coin. A die segment, like the one below, are inside the machine. Each coin is rolled over the lettered-groove on the die segment at a pace of 1000 coins per minute." [URL='http://www.coinnews.net/wp-content/uploads/2013/09/Dollar-Coin-Edge-Letter-Segment.jpg'][IMG]https://www.coinnews.net/wp-content/uploads/2013/09/Dollar-Coin-Edge-Letter-Segment-510x256.jpg[/IMG][/URL] Until proven otherwise, I am assuming they still do it this same way. lets say a piece of metal fragment gets in there with the coin, and there you go. What is the orientation of the lettering on this (head up or tails up reading?) and does it wrap from the edge to the rim of the coin also? Does it correspond to what appears in the picture to be an indent on the obverse below the statue of liberty, just past 6 o'clock on the rim?[/QUOTE]
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