1999 D Delaware Quarter Is It A Doubled Die Reverse / DDR

To participate in the forum you must log in or register.

Author	Replies: 14 / Views: 2,223
prisbrey1 Pillar of the Community United States 936 Posts	Posted 07/27/2023 07:17 am ok on this 1999 D delaware quarter on the reverse are the backend of the front leg doubled and is the front of the hined leg doubled aswell or is it Machine Doubling Report this Post to the Staff

igwt79 Pillar of the Community United States 1464 Posts	Posted 07/27/2023 08:15 am Interesting... I'm not sure, perhaps due to die and hub chatter? ... per kbbpll's comment on this topic http://goccf.com/t/450234) Quote: It may be worth pointing out that since 1999, all coin dies have been produced by single-squeeze hubbing, so traditional doubled dies no longer exist since then. It did introduce another problem, where the die and hub sort of chatter during the single press, but as far as I recall that sort of doubling only appears near the center of coins. Report this Post to the Staff
Brandmeister Pillar of the Community United States 6498 Posts	Posted 07/27/2023 10:22 am Single squeeze hubbing reduced many categories of doubled dies. However, VIII Tilted Hub are still possible. Hubbing reset doubles are also possible and seem to happen. There are many examples on this very forum of such coins. Class IX pop and twist doubles are discussed by CONECA for single squeeze. As for this particular coin, I am having a hard time making out the details. I think it's a microscope image? Maybe the settings and lighting could be adjusted to show the feature more clearly. Report this Post to the Staff
Errers and Varietys Bedrock of the Community United States 74060 Posts	Posted 07/27/2023 11:05 am It could be very slight Machine Doubling or glare from your lighting. Errers and Varietys. Report this Post to the Staff
Brandmeister Pillar of the Community United States 6498 Posts	Posted 07/27/2023 11:14 am Well, I checked NGC and Wexler, no listings for a Delaware reverse doubled die. The lines have a Machine Doubling quality to them, but it seems unusual that both are moving towards the center. This seems more likely to be some DDD, but it's hard to see. I think you need to rotate the coin 90 degrees relative to the light source, so the front edge of the back leg has no shadows. Report this Post to the Staff
silviosi Pillar of the Community Canada 6244 Posts	Posted 07/27/2023 2:58 pm I do not think it is DDR. I go more as an DDD. Here I put 3 photos of MS-67 I have. First show a perfect design and second and third evolution of DDD What you think? Report this Post to the Staff
Brandmeister Pillar of the Community United States 6498 Posts	Posted 07/27/2023 4:02 pm Silviosi, one of the questions I have is about DDD directionality. Almost all published examples show rimward deterioration doubling. The rest show doubling where the devices are chewed down in all directions. For example, nickels from the 1960s seem to show withered devices with doubling halos. Can surface Die Deterioration also happen in a way where the ghosts move uniformly towards the center from all directions? Report this Post to the Staff
silviosi Pillar of the Community Canada 6244 Posts	Posted 07/27/2023 4:44 pm Different years and presses has different repartition of the forces. Here we have a modern Quarter on horizontal presses. The Die will deteriorate more on the weaker sides there where less opposition is. I discuss about the repartition of the forces and the reflection stress on the Die. What you example me here it is complete another beast. 1960, Nickel, vertical press and relative uniform design. So the forces will dissipate from center to the sides and the Die Deterioration will be more active near the Rims. About this topic I think more debated and physical simulations must be done if we want really to has the perfect answer. For the older designs I never had an Die to be able to analize the internal stress and the movement of the material flow and measure the repartition of the forces. For the New Quarters I have two Dies and we was able to see how it is work and why the actual Dies never go more then 100K strikes. Report this Post to the Staff
Dearborn Moderator United States 95740 Posts	Posted 07/27/2023 6:23 pm This one is interesting, I'm not sure what is causing this. 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
prisbrey1 Pillar of the Community United States 936 Posts	Posted 08/06/2023 12:16 am ok I'm going to go try and take better pics and do one upside down so I will be right back with the pictures Report this Post to the Staff
silviosi Pillar of the Community Canada 6244 Posts	Posted 08/06/2023 01:04 am You can take more pics if you want, but I can tell you it is an DDD. I saw many samples of. Report this Post to the Staff
prisbrey1 Pillar of the Community United States 936 Posts	Posted 08/06/2023 04:48 am ok and the second picture of yours is a DDD so a DDD can have a curled to it like yours Report this Post to the Staff
prisbrey1 Pillar of the Community United States 936 Posts	Posted 08/06/2023 05:01 am I'm just going to send a couple more pictures I just like to be thoroughg I'm still learning I still have a hard time with the doubling on the coins I'm hoping to find one of my own so I can study what a double die looks like in person ok so there are more than a couple lol and what about the horses chin right under the jaw Report this Post to the Staff
silviosi Pillar of the Community Canada 6244 Posts	Posted 08/06/2023 05:22 am Sorry I do not understand what you want to prove. Report this Post to the Staff
prisbrey1 Pillar of the Community United States 936 Posts	Posted 08/29/2023 12:09 am I wasn't trying to prove anything I was wanting your help with my coin I just thought I might of had something don't get me wrong I want all of your help I need your help I'm still learning Report this Post to the Staff
	Replies: 14 / Views: 2,223

To participate in the forum you must log in or register.

All Forums Category: US Coins and Currency Forums Forum: US Modern Variety and Error Coins

The First Dollar, your premier source for bullion and rare coins. See our bullion list on the site and the coin inventory on ebay.

Silver Gold Bull US is the United States leading bullion dealer. We deliver gold coins, gold bars, silver coins, silver bars and precious metals to your door. Order today!

View Last 100 Active Topics

Disclaimer: While a tremendous amount of effort goes into ensuring the accuracy of the information contained in this site, Coin Community assumes no liability for errors. Copyright 2005 - 2026 Coin Community Family- all rights reserved worldwide. Use of any images or content on this website without prior written permission of Coin Community or the original lender is strictly prohibited.
Contact Us | Advertise Here | Privacy Policy / Terms of Use

Coin Community Forum

It took 0.38 seconds to rattle this change.

1999 D Delaware Quarter Is It A DDR