1999 D 1c ddo/ddr?

[Bargainbidder62]

1999 D 1c that has notching on date and what resembles Variety's 1999 D 1c DDR-003 I believe but die was so worn and plating had its issues. Reading about the single squeeze has me confused as to how notching would occur and need help. Thank you

[mustbebob]

Can you get any closer on the date? It would help with the examination.

[Bargainbidder62]

I hope these help.

[MintErrors]

Just for clarity. You mention DDR 03, but the focus has been on the obverse. According to variety vista, there have been no DDOs in 1999 in Denver.

Bob knows my stance on the single squeeze vs. Doubled die definition. I am not a fan of zinc cents, but I do attribute them on occasion.

I see what your talking about, and I will ponder on this as I get some sleep.

[Bargainbidder62]

Thank you MintErrors for your expertise in this matter. As I researched the single squeeze I read and my apologies for not remembering the name of person who wrote the article that ejection doubling is what may be the cause of the notching on zinc cents. But not knowing the process, I could not figure out how notching if by ejection could occur on more than one of the digits in date. But since its introduction the zinc cent has caused nothing but confusion and will continue to.

I'm leaning more towards die deterioration and plating that has me seeing DDR-003 on reverse as I have looked at area from every angle.

Once again I appreciate your time, patience and expertise.

[MintErrors]

I know Bob is looking this over.

To me, whatever this is, it's probably tied more towards a planchet issue than a die issue.
There is a mild chance it could be tied to a hub, but if that was the case,, there would be more of these seen..As I said above, I am not a Lincoln zinc cent collector and honestly tend to ignore these as a collector.

I agree withe confusion with the single squeeze technology. Everyone has an opinion on this, but I honestly think it boils down to something very simple. These single squeeze phenomena may occur due to one simple thing. There is a lot of pressure associated when this single squeeze is done. No one can predict the true path taken as the hub meets the blank working die and they are smashed together. I can see things moving just a tad, creating rolls of metal that can eventually give the appearance of a variety.

The U S Mint offers some pretty decent short videos on the processes they do. Here is an interesting read and video.

https://www.usmint.gov/learn/production-process/die-making