2019 P Mariana Islands Quarter Double Die?

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Author	Replies: 21 / Views: 4,199	Page: of 2
mjp79 New Member United States 22 Posts	Posted 04/10/2021 5:03 pm Found this a couple months back. Looks to be a double die and not just Machine Doubling, but I'm not too confident. I don't see anything on reverse, just included image for reference. Report this Post to the Staff

Dearborn Moderator United States 97435 Posts	Posted 04/10/2021 5:10 pm to CCF It looks like MD to me from a worn out die Collecting since 1972. Learning from then on "Tell me and I forget. Teach me and I remember. Involve me and I learn." - Benjamin Franklin 7070 type set coin count: 51/76 Uncirculated American Silver Eagles My American Silver Eagle Proof Collection Sacagawea Dollars Innovation Dollars Eisenhower-Dollars Kennedy-Half Dollars Washington-Quarters Roosevelt-Dimes Buffalo-Nickels 1938-2005 Jefferson-Nickels Lincoln-Cents Report this Post to the Staff
Tanman2001 Pillar of the Community United States 4406 Posts	Posted 04/10/2021 5:18 pm The extra thickness on the RTY in LIBERTY looks good! I think this is a new DDO. There is also some form of Die Deterioration Doubling on the outer lettering though, which is what your photos seem to focus on. Doubling on the single-squeeze (roughly 1997-present) dies tend to be stronger towards the center of the coin. So you might have been looking in the wrong spot! Edited by Tanman2001 04/10/2021 5:23 pm Report this Post to the Staff
Numisma Pillar of the Community United States 4963 Posts	Posted 04/10/2021 6:33 pm I could be wrong, but this looks like just DDD to me. The "doubling" all points toward the center of the coin. Report this Post to the Staff
coop Bedrock of the Community United States 62064 Posts	Posted 04/10/2021 7:39 pm Well it is not a doubled die. But it is opposite side of the devices for DDD. (On the wrong side of the devices) So hang onto for now. Normally the DDO show on the earlobe and the motto area. But just opposite for some reason. Report this Post to the Staff
Tanman2001 Pillar of the Community United States 4406 Posts	Posted 04/10/2021 8:06 pm Guys its both. Report this Post to the Staff
silviosi Pillar of the Community Canada 6244 Posts	Posted 04/10/2021 8:18 pm @Tanman2001 you are very experience guy. This quarter is a Philla strike. The modern coins are struck only once. It is a horizontal strike with a frequency of 750 by minute. Many talk about DD on those strikes. How can happened?!!? To be a end life die, yes. The dies to day are change and no re-polish or re-engraving is done. In fact the only place could still happened is on PROOF where many strike are use for a single coins. I thing we have to adapt. Damage die yes could be, but double die on a single strike? Happy to know opinions. Edited by silviosi 04/10/2021 8:18 pm Report this Post to the Staff
Tanman2001 Pillar of the Community United States 4406 Posts	Posted 04/10/2021 8:48 pm Quote: double die on a single strike I think you fundamentally misunderstand doubled dies. I've seen you post things along this line multiple times now uncorrected. Doubled dies don't occur during striking. Doubled dies are the duplication of design elements on the working hub that occur during the hubbing process (the transfer of the design to the working dies / the creation of dies). This includes dies that are hubbed multiple times with slight misalignments or the die/hub shifting during a single hubbing. All coins struck by that die then will show doubling. Report this Post to the Staff
coop Bedrock of the Community United States 62064 Posts	Posted 04/10/2021 9:04 pm I would like to see images on the right side of the coin to see if there is MD on the right sides of the devices. I have a feeling that when direction is considered, the answer will be a real sloppy MD with a twist that is altering the devices on the left side. The RTY is not affected as the bust is protecting those devices. But on the right side we will see the outer devices affected with the MD and Probably the motto and the bust. It looks like I can see MD on the earlobe. Report this Post to the Staff
silviosi Pillar of the Community Canada 6244 Posts	Posted 04/10/2021 9:34 pm Tanman you are right. This it is the definition (for the old way to produce and adjust the dies). To day a die is done by laser. It is almost no way to have this. The only thing could happened to day is a move of the die to .25 deg. from the axes (the tolerance) which can give this DD (the modern term). MD, yes this could be all the time, is to fast and differences are almost inevitable. Edited by silviosi 04/10/2021 11:18 pm Report this Post to the Staff
Tanman2001 Pillar of the Community United States 4406 Posts	Posted 04/10/2021 10:26 pm Time is a flat circle. http://goccf.com/t/350946 Report this Post to the Staff
mjp79 New Member United States 22 Posts	Posted 04/10/2021 11:15 pm I've attempted to take some better pictures of the obverse. Report this Post to the Staff
coop Bedrock of the Community United States 62064 Posts	Posted 04/11/2021 06:32 am Looking more like a high bounce Machine Doubling issue or a coin ejection issue, which is also a MD issue. The devices are not hub doubled, but normal and altered. Thanks for the last set of images, as they helped a lot more. Report this Post to the Staff
Tanman2001 Pillar of the Community United States 4406 Posts	Posted 04/11/2021 10:59 am Doubling on UNITED and QUARTER DOLLAR is Die Deterioration Doubling, not a doubled die. Extra thickness on RTY in LIBERTY (and maybe STATES?) is a doubled die. It's not nearly as strong as it, but I don't see how this thickness is different from the known 2019-P NMI DDO. Literally the same thing happened when the first one was found here on CCF. Everyone focused on the DDD and missed the real doubling. I pointed out the real doubling and it was later confirmed by Wexler and Wiles. A side-by-side has to be made of the last few letters in LIBERTY. I don't have time this morning. Report this Post to the Staff
mjp79 New Member United States 22 Posts	Posted 04/11/2021 2:29 pm I greatly appreciate everyones thoughts and insight! You are all a wonderful resource. I will consider sending it for attribution based on Tanman2001 opinion and the other thread that was posted with a very similar coin. Report this Post to the Staff
Petespockets55 Pillar of the Community United States 5785 Posts	Posted 04/11/2021 10:24 pm Glad Tanman chimed in because I missed the doubling on LIBERTY until he mentioned it. I can see the separation on the foot of the R (LIBERTY) the most. Congrats. Words of encouragement are one of the major food groups. We need to consume them regularly to thrive and grow. Report this Post to the Staff
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