Are the official years of Kennedy half NIFCs actually known? Red Book has a range listed, but according to Coin World, these years are not...
This is the latest version "errors/varieties nicknames cheatsheet" that Pete Apple and I have released. We have always shared to Facebook coin...
Have proof cents from 2000 been thoroughly checked for close AM reverse? The theory is that SF asked Philly for more proof dies; Philly sent...
--------------------------------------------------------------------------------------------------- RDV-003 = Type C = IIIo --> serif on N of UNUM...
Circulation find - this is going to be the first known DDR for George Rogers Clark. I have found two, and the high points align perfectly. Y'all...
Possibly retained die fill on UNC 2019 Lincoln Shield Cents, discoloration surrounding the anomaly on all three found from the same roll. But I...
Is tin at fault for improper alloy mixes (woodies) in cents? The reason I ask is because they seem to vanish when tin is taken away in the early...
I am very excited about the first ever colorized US coins, but the mintage and product limit is very confusing. On one coin it says there is no...
[ATTACH] [ATTACH] What are the diagnostics for an improperly annealed error? The rim is affected or unaffected by color? What about the rim edge?...
Is there a third party grading company rarity quota? I read a forum post about one bulk submission - the poster said most of the grades seemed...
Do any struck through errors show on both sides of a coin? Let us say that the object in between has more width than the planchet. What happens...
Is there a mint tolerance for doubled die varieties? So somewhere along the way, I heard or read that minor (think class 8/9) doubled die...
Does anyone know if working dies are ever used for consecutive years? I know of no same doubled working die that can be found on more than one...
Die trail error on 2018 cent? It's VERY minor, but I can see four lines above, which would make sense. There is only one line below (off the F)...
Is it rare for a die crack to expose zinc? These are two different cents from a UNC roll, so I know it isn't damage. I have a 1993 spike head die...
Are rare close/wide AMs considered varieties or errors? Authorities differ... I side with Mike's die installation error, but Wexler and CPG have...
How can circular die cracks, retained die breaks, and die breaks be differentiated? What are the characteristics of each? I understand the...
Per Error Ref, all 1979-D cents should show a broken mintmark punch (notch in lower left). But this one I have here does not. Any ideas?
On Error Ref, it says that rim restricted design duplication is known on 1994 and 2004 cents. There is a picture of the 1994, but I am wondering...
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