2010 Yosemite qtr DDR?

[mojaveblue]

Well, I don't know much to begin with, and even less about incused devices. But the last "A" in California in this qtr has a "ghost" image that appears also to be incused, and is definately separated from the main device. I don't think MD fits in this case, but looking closely at it, the secondary "A" appears to be smaller than the main device, could this be a second strike where the die did not fully enter the blank? Or is this a problem with the die hubbing? Only the "A" device has this ghost.
I have 99 other qtrs from the mint bag, I have only looked at a few.

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[Dick]

It sure looks like a large over small. good separation, too. I would hang onto the bag, and check the rest, very closely. If there are more like this one, "hide 'em"! Then put one on "Feebay".

[mojaveblue]

Yep. Exactly. Do you have any thoughts on how an error like that could happen?

[coppercoins]

Actually machine doubling on incuse devices would look like a different form of doubling because of the nature of the direction of the relief.

If you really think about it, when a coin has incuse letters that means the die had to have the same letters in relief. If you punch relief into a coin, move it and punch again, it's very similar to a hub making a die...which is what causes hub doubling (doubled dies).

So...in short...machine doubling of incuse letters WILL have notching just like yours.

The appearance of different letter sizes comes from the fact that the top of the relief is minted into the coin lightly. The heavier lettering is beveled to aid in die release. When the letter is minted into a coin softly, you see the top of the bevel...thinner and smaller than the letters base (at the field).

[mojaveblue]

So you are saying it fits MD for incuse lettering?
I can see in my mind how this could happen to all the letters in "California" possibly if the coin was struck more than once or shifted during the strike, but it's interesting to me that it was only the last "A".
What if the "A" on the die was made in higher relief than the other letters, then when the initial imprint occurred and the blank shifted to its final spot the full imprint would have occurred. Not really a variety or error, just a different strike error like an ejection double or something.
I havent checked the remaining mint bag for duplication, but am interested to do so soon. If the occurrence is repeated, would that still allow MD or coin blank shifting?

[eagames]

MD often shows in one area and not others.

A press set-up can have something loose and make repeats but each coin might be similar but not exactly the same. Because of that you might find similar ones in the same bag.

Also certain years have more than others, 1957 cents had a lot of wild looking ones that show on the date and sometimes many areas. 1969 cents sometimes have it on the incuse VDB.

[mojaveblue]

Ok, I'm batting 0/3 so far.
Back to the cages for more practise.
I appreciate the specific references to different years and types of similar cases, I am trying to keep my notes in summary to refer to when doing my searches. And like I have read Chuck say to search one date and MM and learn how they compare so that you can see when one is different.
Thanks Ed.

[coppercoins]

I believe what you are catching in what I said is to sort your coins and check them one date at a time so you can get used to what the coins should look like for that date so when you see something different you will immediately recognize it.

Another thing - you might be zero for three, but I can tell you that I was zero for a few hundred before I found my first hit. Difference between you and me is that I started before PCs, much less the internet. You have a very good point of reference and technology on your side.

Alas, nothing beats seeing the real thing in person, which is what I would suggest to you. If you are serious about finding these things, it's time to spring for a doubled die and an RPM from a reputable source so you will be able to look at them in hand to remind you of what you are seeking.

And yes...the coin you posted in this thread is machine doubling.

[mojaveblue]

That's exactly what I was thinking maybe a week ago, to check the sales list here for a good example of each.
Yep, I know I have many more coins to check, before you let me join the forum here I likely didn't have much chance of success either.
So I appreciate the time you and the others take to provide me with comments on my posts.

[eagames]

I did the same thing years ago, bought a cheap 1995 DDO to see what a real one looked like then I got hooked and went nuts searching and found some good stuff.

[mojaveblue]

Yep, could use about 4 more hours in the 24 in a day they give me for searching and researching.