True DD? Insight appreciated please

[stephanie.vazquez84]

Please forgive my ignorance but despite my best efforts I still find incredibly difficult to differentiate true doubling from machine doubling, dye deterioration, etc. Will somebody please tell me whether or not this is a true double dye error please? Many thanks!

Stephanie

[onecent1909]

die deterioration not a true DD.....

[MintErrors]

Please forgive my ignorance but despite my best efforts I still find incredibly difficult to differentiate true doubling from machine doubling, dye deterioration, etc. Will somebody please tell me whether or not this is a true double dye error please? Many thanks!

Stephanie

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I agree with John. If you look closely at the letters, one set is tall and the other appears to be flattened.

A doubled die is a working die that has multiple impressions of the design. The key to this is to remember the presses which sink the impression are done at the same pressure. This means once the working die is added to a minting press, that double die produces coins. The doubled die, since it had both impressions at the same pressure should have the same height on the coin.. That's super important.

Now - the hard part. If the doubled dies is just a touch off, it may only show a sliver of doubling. But, again, it should not be flattened, nor should it be step like shelf like.

In this day and age, it takes a lot of patience and luck to find a roll with some winner varieties in them..... notice I said varieties ?

Varieties in this adventure of coin collecting are:
Doubled dies (DDO, DDR)
Re-punched mint marks (RPM's) (D/D, S/S, O/O etc.)
Over mint marks (OMM) (D/S, S/D, O/CC etc.)
Re-punched dates (RPD's) (of same year)
Overdates (two different dates)
Mis-placed dates ( located elsewhere, like near rim)

I will add a few links. I hope they help.
https://minterrors.org/index.php/doubled-dies/

https://minterrors.org/index.php/wha...anical-damage/

Let us know if you have any questions.
Happy hunting.