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2007 Proof Quarter//Ddo?

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wrongalot's Avatar
United States
608 Posts
 Posted 12/25/2007  11:28 pm Show Profile   Bookmark this topic Add wrongalot to your friends list Get a Link to this Message Number of Subscribers
I am thinking this is doubling? What do you all think? This is in a Proof Set from the Mint, none of the other Quarters look like this.

2007-Proof-Quarter//Ddo???

2007-Proof-Quarter//Ddo???

2007-Proof-Quarter//Ddo???

2007-Proof-Quarter//Ddo???

2007-Proof-Quarter//Ddo???

2007-Proof-Quarter//Ddo???
Edited by wrongalot
12/25/2007 11:30 pm
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j_h_s's Avatar
United States
1934 Posts
 Posted 12/26/2007  03:52 am  Show Profile   Bookmark this reply Add j_h_s to your friends list Get a Link to this Reply
It seems double to me; particularly on the "ER" in AMERICA.
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coppercoins's Avatar
United States
7629 Posts
 Posted 12/26/2007  10:39 am  Show Profile   Bookmark this reply Add coppercoins to your friends list Get a Link to this Reply
It's Machine Doubling. No premium value.
Valued Member
United States
140 Posts
 Posted 12/26/2007  12:14 pm  Show Profile   Bookmark this reply Add MountainXBGL to your friends list Get a Link to this Reply
Boy,....The more I learn, the dumber I get! If that isn't doubling, then I have no clue what doubling looks like. The "R" in quarter looks pretty cut and dry to me.

I don't mean that in any sarcastic way either because I know that I am a complete infant in my knowledge.

PS-those are some fantastic pictures!
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Metalman's Avatar
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7123 Posts
 Posted 12/26/2007  1:06 pm  Show Profile   Bookmark this reply Add Metalman to your friends list Get a Link to this Reply
MountainXBGL


True doubling will in most cases show split serif ends on the letters ,, the flat shelf like appearance on this coin is pretty much an indication of Machine Doubling .

Take a look here for more on Identifing types of doubling .

http://koinpro.tripod.com/Articles/...Doubling.htm

Metalman
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wrongalot's Avatar
United States
608 Posts
 Posted 12/26/2007  1:25 pm  Show Profile   Bookmark this reply Add wrongalot to your friends list Get a Link to this Reply
Metalman, there is nothing FLAT about the lettering, what I thought was doubling is at the same height as the normal serifs, although I agree that flatness is the first sign of Mechanical Doubling, no flatness here,it rounded, and there is doubling where there are no separation of serifs, look on coppercoins site, he explains this, it is class 6 doubling. I know what Mechanical Doubling looks like, I have found sooooooo many of them. I was more inclined towards die deteriation. But the more I look at coppercoins site the more it looks like some of his. The photo's can be make it look different than it actually is, ie: lighting.
Valued Member
United States
140 Posts
 Posted 12/26/2007  1:27 pm  Show Profile   Bookmark this reply Add MountainXBGL to your friends list Get a Link to this Reply
See, I think I am learning something here. Thanks Metalman for the link.

See if I am understanding something here. A "premium" double has nothing to do with the ability to see "two" distinct patterns or images, but the process involved to get these two distinct patterns. If the doubling occurrs as part of the normal stamping process such as a slight shift in the planchet or wear to the die, then it is not a "premium double"?

I do not know the verbage necessary to convey my thinking but by "premium double" I am trying to refer to a coin that is considered rare and distinctly more valuable.
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Metalman's Avatar
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7123 Posts
 Posted 12/26/2007  1:32 pm  Show Profile   Bookmark this reply Add Metalman to your friends list Get a Link to this Reply
Ok then there is the second part that indicates Machine Doubling ,, it takes up part of the original dimension of the device.

in other words the doubling is within the orginal device,,not an addition to it .

Your right the object viewed in two dimensions may appear differently in three dimensions .

thats why the comments posted here are opinions ,,but you have the best view and the final judgement must always reside with you as the holder of the coin .

Metalman
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Metalman's Avatar
United States
7123 Posts
 Posted 12/26/2007  1:34 pm  Show Profile   Bookmark this reply Add Metalman to your friends list Get a Link to this Reply
Mountian thats correct ,, true doubling occurs on the die not on the coin .

Valued Member
United States
140 Posts
 Posted 12/26/2007  1:37 pm  Show Profile   Bookmark this reply Add MountainXBGL to your friends list Get a Link to this Reply
See, now I'm getting somewhere! Thanks for the replies!

So, if I am following the process correctly, a "premium" double would be a situation where a coin was struck once, the die altered and the coin restruck?
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wrongalot's Avatar
United States
608 Posts
 Posted 12/26/2007  1:43 pm  Show Profile   Bookmark this reply Add wrongalot to your friends list Get a Link to this Reply
One of the questions that I have. If all Proof coins are struck at least twice (per COA of proof coins), if on the second strike, a shift occurs, even minute, could it not cause some sort of doubling?
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Metalman's Avatar
United States
7123 Posts
 Posted 12/26/2007  1:46 pm  Show Profile   Bookmark this reply Add Metalman to your friends list Get a Link to this Reply
No, the doubling is present on the working die or the master hub which makes the working dies ,, its not a matter of the number of strikes .



Valued Member
United States
140 Posts
 Posted 12/26/2007  1:54 pm  Show Profile   Bookmark this reply Add MountainXBGL to your friends list Get a Link to this Reply
Ok...I am with you I think.

A "premium" double is a coin that is the result of a die that is variant due to the design in the die. Whether it was a previous die that had been altered(ie, date or mint changed)or just initially designed in error such as in the 1984 double ear lincolns......that whole paragraph is really a question more than a statement

2 more quick questions

1-how many times are business strike coins "sruck"?

2-this one embarrasses me cause these terms are thrown around on this site like candy in a parade, but what is "EDS" and "LDS"?
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Sleaklight's Avatar
United States
827 Posts
 Posted 12/26/2007  1:57 pm  Show Profile   Bookmark this reply Add Sleaklight to your friends list Get a Link to this Reply
1) Once
2) EDS = early die state
LDS = late die stage
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