1992 d dd???

Hello I am new to the site and was wondering if you could help me with this. My girlfriend asked if it was her or do I see two dates on the coin or not. and I looked under a magnifying glass and I did but am not sure if its a double die or a machine double or what. I am fairly new of a collector so if you could please help me figure out if this is a double die or not. Its hard to see I couldn't get a great picture with my camera but you can see it around the 992 especially and the D

 

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1st off welcome to the forum! Cannot tell by the pics but would guess it is MD.

 

Welcome to the forum! I would say that it is machine doubling. It seems to be very common on 1992D cents.

 

Well what exactly is the difference between MD and DD? Sorry I'm new to all this error business.

 

Quite a few 92 D's have this appearance. It seems to be caused by some sort of problem with the copper plating and the striking. I like the term "plate doubling".

Doubling that occurs during the strike of the coin is generally referred to as Machine or Strike Doubling. It does not generally add value.

Doubling that occurs in the making of the dies when they are carved improperly is a Doubled Die and they do command a premium because they are rare.

Hope this helps

 

Check this out for more info.
http://www.coinbidders.com/Strike Doubling Flyer - PDF.pdf

 

Okay I sort of under stand the difference but cannot tell visually between DD and MD but I would really like to and I'm trying. Also does anyone have any good tips on how to take a picture of a coin?

 

Use the macro setting, DO NOT ZOOM and play with the lighting. 2 light sources sometimes helps.

 

Yeah, you are definitely seeing something but I am pretty sure you can just stick that one in the piggy bank... I have found enough of those to quit bothering with them, and I like that term plate doubling... On the 91's and really everything after, you can find that effect... It appears like the plating is stretched away from the raised elements... It can give a really neat effect that at first glance can appear to be doubling... If you look really close, you will notice that the apparent extra edge is not even a raised surface, just more of almost a 'shadow'... As for the other question about the machine doubling, I am no expert by any means, but the machine doubling (which is very common in some years) usually appears like a very flat, shelf-like version of the original... It won't have the smooth 'bubble-like' appearance of the actual letters or digits that they are 'doubles' of...

Glad to see you are checking them closely though... That's where some of the tougher finds come from...

B

 

Thanks for all of the feed back guys! It really helps I will be posting here more often how.

 

Hard to say from the pics but I would lean toward Die Deterioration Doubling (DDD) as opposed to Machine Doubling (MD) on a 1992 like this. I have a page of DDD examples here:
http://www.lincoln-cents.cuvelier.org/OFD/DDD.html

 

I have never heard of Plate Doubling and am inclined to suspect this is a erroneous term for DDD on plated Lincoln cents, which do, to a degree, almost look as if the plating is bubbled up toward the rim. One only needs to change the angle of the light to find the telltale signs of an LDS coin and the orange peel effect on the surfaces around the DDD and other parts of the coin.

 

Oh yes DDD looks like it would be it. Thanks a lot I now have my answer. I will be coming here often with all my amateur questions

 

Funny, I said I liked that term plate-doubling, meaning that I think it is a better description for what appears on the coin. It is in fact that DDD class of problem with the coin, but I don't like thinking of it as doubled... I have found hundreds, if not thousands of them by now especially from dates '91 to 2001 and it just appears to be from poorly made planchets or poorly plated coins... In fact, more and more I am seeing where the outer clad layer is actually pressed all the way through, exposing the zinc below, especially around the bulding edges on the reverse... It just seems like they are striking some poor quality coins these days... ...

B

 

DDD is an accepted and used term - calling it anything else just leads to confusion, in particular with newer collectors who are unaware of what is what.

The splits in the plating (where some of the zinc is exposed) is referred to as either Plating Split Doubling (PSD) or Split Line Doubling and is found only on plated Lincoln cents and is indeed common in the years outlined (typically '89-'02) on the outer devices. It also occurs somewhat more dramatically, though inconsistently, on Broadstrikes and sometimes Off-center Strikes. The DDD is not related to the PSD as the doubling effect of the DDD occurs on the die whereas the doubling from the PSD occurs on the individual coin. The two should not be confused with one another nor with Machine Doubling as they all have entirely different root causes.

 

I am not sure where that term came from. I therefore defer to your better explanation and stand corrected.

Thanks for clearing that up.

Cheers

 

Well actually on the D of the coin there is another D right in the middle where the copper is missing its looks like a DDD but the copper is just missing on it and it is only on the D it is not on the date...

 

Then it is likely a combination of the two, DDD and PSD, with the PSD on the Mintmark (MM). Of course we would need much larger pics to know for certain...but that's my best guess based upon availible information...

Happy Holidays

 

Just a small tip for beginners.... it is not hard to discern between plate doubling and a true DD. As already had been said, plate doubling is very common (actually starting in the mid 80s). At least a strike doubled coin can be slightly interesting, even if it really carries no premium. Once someone finds a true DD, they usually realize how great the difference is. I wish you luck.

 

I have a true double die Well I don't my dad does and I was looking at my dads double die I think it was the 1995 P and I see it is very obvious what the difference is I was almost positive that this was not a double die I just wanted to double check because my dad insisted it was. Which is funny I'm the amateur and he has be collection for most of his life he has the whole dansco 8100 penny book filled..