1972 DDO??

savoyspecial

is this cent an example of the DDO die#3?? there is only doubling on the date

also, what do these go for? just curious, it was a roll find


g




1972 DDO

mcgrover

strike doubling

coppercoins

<< <i>strike doubling >>



I concur

slothman2000

great picture

tahoe98

shelf doubling but

millennium

I agree with the rest....good pic though. Plus the Die 3 does have some doubling on the "In God We Trust"...really easy to see.

Coinsponge

Learning time. What is shelf doubling? Also, should a strike doubling cause doubling on everything on the coin?

guitarwes

yep, strike doubling.

Here is one I found not too long ago in a roll. I can't remember if it's #2, #3, #4. IGWT and the top of the "LIB" in LIBERTY is doubled.

JRocco

<< <i> should a strike doubling cause doubling on everything on the coin? >>


Not always, here is an example of strong machine doubling on only 1 part of the design, the date and MM.

Coinsponge

I have a SBA with similar doubling. Are there any of the SBA's documented with doubling like this?

Coinsponge

<< <i>

<< <i> should a strike doubling cause doubling on everything on the coin? >>


Not always, here is an example of strong machine doubling on only 1 part of the design, the date and MM.

>>



I am trying to imaging how this is happens and it does not make sense to me. If a coin moves in a strike then how does shifting occur on only one or two features of the coin when the die is solid and rigid and all of the features on the die in constant spacial relation to each other.

guitarwes

It's a very strange phenomenon that I will not even attempt to explain. very strange.

pontiacinf

<< <i>yep, strike doubling.

Here is one I found not too long ago in a roll. I can't remember if it's #2, #3, #4. IGWT and the top of the "LIB" in LIBERTY is doubled.


>>



I found one just like this a few weeks back, I need to check chucks site and see which # it is

tahoe98

shelf = machine doubling

Coinsponge

<< <i>shelf = machine doubling >>



Do the TPG's make a differentiation between die doubling and machine doubling? How can you what it is by looking at the coin? I am thinking that if there is more than one coin exibiting the same doubling it has to be the die.