1970 S Lincoln Memorial Cent / LMC Doubled Die Reverse / DDR Or Machine Doubled?

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Author	Replies: 8 / Views: 1,077
LCober New Member United States 44 Posts	Posted 08/02/2018 9:10 pm Had this for a while when hunting for DDO's and just recently starting looking for DDR's. I really would like opinions. Thank you!! Edited by LCober 08/02/2018 9:22 pm Report this Post to the Staff

Crazyb0 Rest in Peace 10197 Posts	Posted 08/02/2018 10:02 pm Outlined is normal size letter, what does that mean? It means the RULE! Hub Doubling ALWAYSINCREASES the device size... Mechanical Doubling ALWAYSDECREASES the device size...period! Report this Post to the Staff
LCober New Member United States 44 Posts	Posted 08/02/2018 10:04 pm Thankkkk you so much!! That helped a lot! Report this Post to the Staff
coop Bedrock of the Community United States 62064 Posts	Posted 08/02/2018 10:08 pm Report this Post to the Staff
LCober New Member United States 44 Posts	Posted 08/02/2018 11:08 pm Thank you Coop!! Report this Post to the Staff
SilverDollar2017 Pillar of the Community United States 8715 Posts	Posted 08/02/2018 11:35 pm Just some MD, as stated above by coop and Crazy. A DD will increase the size of the devices, while with MD the devices are the same size with just a doubled shelflike look. Report this Post to the Staff
Errers and Varietys Bedrock of the Community United States 74906 Posts	Posted 08/02/2018 11:41 pm It's Machine Doubling, since the devices are reduced in size. http://www.error-ref.com/machine-doubling/ Errers and Varietys. Report this Post to the Staff
Halo1st Pillar of the Community United States 2775 Posts	Posted 08/04/2018 09:59 am Quote: It means the RULE! Hub Doubling ALWAYS INCREASES the device size... Mechanical Doubling ALWAYS DECREASES the device size...period! More food for thought. I agree in this case, but had we been looking at incused devices the increase and decrease rule flips around. Thanks, Doug. Report this Post to the Staff
coop Bedrock of the Community United States 62064 Posts	Posted 08/05/2018 12:43 pm Don't forget you can have MD on a doubled die. So you end up with enlarged and reduced devices on the same coin. And some types of MD does increase the size called push doubling. So what now? Always look for the pushed area. The flat shelf like, step down area. That will be your clue. The dies area will all show the same color as it is flat. The contour has been removed. Or look for what I call snow plow look on devices. When the MD happens it pushes the devices out of its way making the debris to rise above the devices. So when we make a rule on something, keep in mind there are exceptions to the rules. Why? Because MD doesn't play by the rules. It does it own thing. Report this Post to the Staff
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1970 S LMC DDR Or Machine Doubled?