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coppercoins.com Forum Index arrow Questions about Die Varieties arrow 1961 Proof Cent - Another case of Master Die Doubling?

1961 Proof Cent - Another case of Master Die Doubling?
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Russellhome
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PostPosted: Tue Feb 20, 2007 8:06 pm Reply with quote

I found some long, lost coins today (which means I hadn't search them for DVs yet) - and noticed extra thickness on the Liberty and Date of one 1961 proof cent. The lower part of the B of Liberty has a clear notch on it as well. Is this another case of master die doubling or is this a DDO? The one marked "Cent 1" appears to be notably thicker.






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eagames
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PostPosted: Tue Feb 20, 2007 8:39 pm Reply with quote

Notice on your cent #2 the top tip of the 6 has a hub break?

That break is on most normal 61 proof cents. There's also a master doubled die on some of those (they have that same break like yours)and they have minor doubling you can see on the top of GOD mostly on the top of the O. These were listed as Pr 1-O-II (in Wexlers old book) but I'm not sure if the listing is still valid.

Your other cent #1s date does look wider than most 61 proofs and the hub break looks a bit different but still is there, not sure what it is if anything.

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Russellhome
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PostPosted: Tue Feb 20, 2007 11:20 pm Reply with quote

I checked out the CONECA site and they list an MDO-001 - which sounds like it may be what I'm seeing here. I assume MDO means Master Doubled Obverse. I did a closeup of the tips of the 6 and the 9, and they are different.


Left side is 'Cent 1'

Left side is 'Cent 1'

So it looks like different master dies were used - but the thicker one may still be master doubling.

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Bob P
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PostPosted: Wed Feb 21, 2007 7:06 am Reply with quote

I agree that they are Master Die Doubling. The thicker date seems to be from die wear. I do not see it as a doubled die.
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Russellhome
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PostPosted: Wed Feb 21, 2007 1:39 pm Reply with quote

Bob P wrote:
The thicker date seems to be from die wear. I do not see it as a doubled die.


Bob

Well - I did an overlay and the thicker date is actually just about the same width as the one that looks thinner. I think it just looks thicker because it is flatter. But there is a little extra stuff inside the loops of the 9 and 6. Is that wear too?



The photo above is an overlay. I cut out the date of the "Cent 2" photo and pasted it over the top of the "Cent 1" photo. It is funny how much thicker the "Cent 1" looks -- but as you can see, the "Cent 2" photo covers it up almost completely (i.e. they are the same size).

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Bob P
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PostPosted: Wed Feb 21, 2007 4:28 pm Reply with quote

Ken,
On Proof coins, we need to remember that the coins are struck multiple times to ensure a deeper, sharper strike. I don't think anything on there, (even what you are seeing on the insides loops of the 9 and 6) are anything abnormal.
BTW...your overlay was very well done.

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Dick
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PostPosted: Fri Feb 23, 2007 12:58 am Reply with quote

Bob, I sent you a PM.
Dick

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