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<p>[QUOTE=&quot;Insider, post: 2491137, member: 24314&quot;]All this back and forth is giving me a headache <img src="styles/default/xenforo/clear.png" class="mceSmilieSprite mceSmilie55" alt=":hurting:" unselectable="on" unselectable="on" />.&nbsp; This is not complicated.</p><p><br /></p><p>1. Yes, it is possible to have a DDO coin struck with two different reverse dies and a DDR struck with two different obverse dies.&nbsp; So what.&nbsp; The important part of the coin is the side with the doubling and it better match exactly.</p><p><br /></p><p>2. A marker is only a &quot;true diagnostic marker&quot; for authentication when it is unique to the variety or specific date.&nbsp; If variety A has a specific diagnostic marker and it is not on the coin in question you are either dealing with a different variety (usually the case) or you may have a later die state where the marker is missing.&nbsp; In that case - it really isn&#039;t such a great diagnostic marker after all is it <img src="styles/default/xenforo/clear.png" class="mceSmilieSprite mceSmilie11" alt=":rolleyes:" unselectable="on" unselectable="on" />, so pick a better one.&nbsp; <img src="styles/default/xenforo/clear.png" class="mceSmilieSprite mceSmilie33" alt=":cigar:" unselectable="on" unselectable="on" /></p><p><br /></p><p>3. Mint mark positions are not markers as they are in the same position for coins struck with that die.&nbsp; They are mint marks.&nbsp; For example, the fact that four MMK positions are posted for a 1909-S VDB cent is cool.&nbsp; It is helpful to have that research but I have heard these coins have other diagnostic markers for each die too.&nbsp; If someone wishes to collect all the positions of the &quot;D&quot; mint marks on 1948-D nickels and call that a variety collection, go for it. <img src="styles/default/xenforo/clear.png" class="mceSmilieSprite mceSmilie8" alt=":D" unselectable="on" unselectable="on" />[/QUOTE]</p><p><br /></p>

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