Does this 2018-D quarter have a DDR?
rec78
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Is this coin a DDR? or perhaps a TDR or even QDR? This kind of doubling I have not seen before.
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rec78
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Not a doubled die, incuse strike doubling. (machine doubling)
That is machine doubling... No numismatic premium. Cheers, RickO
while the guys above are probably spot-on, i'd check through some of the coinage with incuse doubling (not many) and have a lookie loo.
i've been meaning to look one up too as incuse doubling is a bit odd to detect and i really need an image refresher.
MD but a strong example of it.
Machine doubling