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<p>[QUOTE=&quot;MatrixMP-9, post: 3968249, member: 93422&quot;]I think it was an &quot;a-ha&quot; moment for me in a sense. When looking at a coin and seeing &quot;flat shelf like doubling&quot; I knew that was an &quot;eliminating&quot; feature but for a long time just couldnt understand why. When I visualize a hub being pushed into a die....being backed out then pushed in again a second time it helps me visualize &quot;why&quot;. Visualizing the &quot;curved&quot; surface of a letter on a penny. Pushing into one spot then pushing it again...it will not create a &quot;flat shelf like doubled device&quot;. You cant get &quot;flat and shelf like&quot; from a curve. Understanding that helps me when looking at the surface of a coin. That flat doubling has to come from something else happening. Even if I dont understand machine doubling or any of that, it helps me form a better opinion of a coin being a true doubled die. Where this hobby throws me for a loop at times is the photos of doubled dies on VV and the others....I cant see the doubling at all even when I try to navigate the &quot;stages&quot;....tilted, rotated, etc...its still tough. I hate reading in the description &quot;extra thickness&quot; because it seems so subjective simply considering how any metal ages and wears over time. For example, a 1919 nickel thats been in existence for 100 years in storage, under water, in a pocket, through miles of tracks in counting machines yet thickness not recognizable to the unaided eye comes into play. Thank the coin Gods for experts that can look at a decent picture and tell you what it what![/QUOTE]</p><p><br /></p>

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