Question On Grading

Yes-Chalton catalogues have a front section dealing with each era-Vicky, edward , george etc---grade by grade (What to look for)

In most cases, with business strike coins, rarity does not affect grade, but the grade can affect rarity.
Population for grade data support this.

I say 'in most cases', because specially made for collector coins, proofs and patterns can, but only rarely, find their way into extended circulation. They are most often found in very high grades.

Nevertheless, I agree that modern coins should be more strictly graded, due to much more strict quality control in their production.

Sel - Your aphorism on grade and rarity is well-put and worth remembering, but in my experience not always the case. I cannot tell you how many overgraded '77 Indian cents I have seen in slabs from the top two TPGs. In some cases, I think rarity does affect grade.