1990 Quarter Doubled Die Obverse / DDO Or MD?

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Author	Replies: 13 / Views: 570
Jsertl Valued Member United States 319 Posts	Posted 12/28/2025 9:07 pm I found this guy in my pocket change earlier and spotted the doubled forehead & face right away. unfortunately though my microscope is broken so these are the best pics I can get at the moment. I haven't done this in quite some time so I thought I'd just ask you experts for your opinion. thanks in advance. Report this Post to the Staff

Errers and Varietys Bedrock of the Community United States 73717 Posts	Posted 12/28/2025 9:32 pm Looks like Slide Doubling, a form of Machine Doubling. A nice example worth keeping. https://www.error-ref.com/slide-doubling/ Errers and Varietys. Report this Post to the Staff
ijn1944 Bedrock of the Community United States 19119 Posts	Posted 12/28/2025 9:36 pm Looks to be a rather strong instance of Machine Doubling, yes. Very cool. Report this Post to the Staff
Dearborn Moderator United States 94812 Posts	Posted 12/28/2025 9:49 pm yeah, very cool Machine Doubling - the part that got me was how much the nose has been reduced. 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
Greasy Fingers Pillar of the Community United States 6997 Posts	Posted 12/28/2025 9:50 pm Dang...that's extreme and pretty darn cool....2x2 worthy in my eyes. Report this Post to the Staff
Marv65 Bedrock of the Community United States 10484 Posts	Posted 12/28/2025 9:54 pm That's some crazy MD! Report this Post to the Staff
jfeed Pillar of the Community United States 1259 Posts	Posted 12/28/2025 10:04 pm Wow.. That's a great example of MD. Report this Post to the Staff
Jsertl Valued Member United States 319 Posts	Posted 12/29/2025 01:19 am Okay I looked at your link for slide doubling and I dont see a resemblance to be honest. The examples of slide doubling in that link showed the doubled edge as smeared in all examples & mine has zero smearing. Report this Post to the Staff
Jsertl Valued Member United States 319 Posts	Posted 12/29/2025 01:22 am I just now noticed the "In God We Trust" looks to be extra thick. Does that show doubling to? Report this Post to the Staff
Jsertl Valued Member United States 319 Posts	Posted 12/29/2025 01:24 am Also in the slide doubling examples on that link you can see the whole coin has shifted whereas mine doesn't show movement on anything else. Report this Post to the Staff
Jsertl Valued Member United States 319 Posts	Posted 12/29/2025 01:35 am ERRERS AND VARIETIES, Okay I did some more research on slide doubling & seen other examples that do look like mine. I had never heard of slide doubling before today. I wasn't trying to question your knowledge on the subject. It was just the difference between those examples in your link & my coin had me confused because they looked so different. So I apologize for questioning your input. Report this Post to the Staff
jbuck Moderator United States 187702 Posts	Posted 12/29/2025 10:25 am A great example to keep for reference. Coin Collector Since 1978 Avatar Old Avatar 7070 Eisenhower Australia Canada World CCF Members on eBay CCF eBay Search Engine Report this Post to the Staff
Earle42 Bedrock of the Community United States 10034 Posts	Posted 12/29/2025 10:34 am Really great example. How much squash could a Sasquatch squash if a Sasquatch would squash squash? Download and read: Grading the graders Costly TPG ineptitude and No FG Kennedy halves https://ln5.sync.com/dl/7ca91bdd0/w...i3b-rbj9fir2 Report this Post to the Staff
Errers and Varietys Bedrock of the Community United States 73717 Posts	Posted 12/29/2025 12:19 pm It's all good, Jsertl. Errers and Varietys. Report this Post to the Staff
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1990 Quarter DDO Or MD?