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<p>[QUOTE=&quot;desertgem, post: 2228504, member: 15199&quot;]True doubled dies occurred in the older process of multiple die pressings, where the &#039;master die&#039; was used to make a working die ( to make the coins) by pressing the harder master die into the softer working die. Once would not do it on the older presses, so the working die was taken out , heated ( anneal) to remove any induced hardness and reinsert again, using lugs on the dies for correct orientation, and pressed again. This process continued until the die foreman declared the image sufficient to make the impression. Sometimes the lugs were worn and the repetition was not done exactly and overlapping ( doubled)images were formed. Also sometimes the lugs were altered to make the process faster, and this increased the number of DD. Yes, the supervisors should have noticed, but in most of that age, it wasn&#039;t deemed a really big deal, they were just make spendable money. With the introduction of the single squeeze method, pressures of the presses could make a die with a single press rather than annealing in between multiples. Even with a single press, there were doubled areas on parts of the coins, later to be traced to movement of the master die as it squeezed the working die and as it raised up, it sometimes did not do so accurately and &#039;flicked&#039; over making a doubled area.&nbsp; This is modern DD, and I personally consider it to be a different form of mechanical doubling ( MD)rather than a Doubled die by the classical means. Of course there are many different types of misalignment, including more than one on a single die, so it can get very complicated to explain them.[/QUOTE]</p><p><br /></p>

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