Grading parameters of slabbed coins

Grade	Description
PO-1	Identifiable date and type
FR-2	Mostly worn, though some detail is visible
AG-3	Worn rims but most lettering is readable though worn
G-4	Slightly worn rims, flat detail, peripheral lettering nearly full
G-6	Rims complete with flat detail, peripheral lettering full
VG-8	Design worn with slight detail
VG-10	Design worn with slight detail, slightly clearer
F-12	Some deeply recessed areas with detail, all lettering sharp
F-15	Slightly more detail in the recessed areas, all lettering sharp
VF-20	Some definition of detail, all lettering full and sharp
VF-25	Slightly more definition in the detail and lettering
VF-30	Almost complete detail with flat areas
VF-35	Detail is complete but worn with high points flat
EF-40	Detail is complete with most high points slightly flat
EF-45	Detail is complete with some high points flat
AU-50	Full detail with friction over most of the surface, slight flatness on high points
AU-53	Full detail with friction over 1/2 or more of surface, very slight flatness on high points
AU-55	Full detail with friction on less than 1/2 surface, mainly on high points
AU-58	Full detail with only slight friction on the high points
MS/PR-60	No wear. May have many heavy marks/hairlines, strike may not be full
MS/PR-61	No wear. Multiple heavy marks/hairlines, strike may not be full
MS/PR-62	No wear. Slightly less marks/hairlines, strike may not be full
MS/PR-63	Moderate number/size marks/hairlines, strike may not be full
MS/PR-64	Few marks/hairlines or a couple of severe ones, strike should be average or above
MS/PR-65	Minor marks/hairlines though none in focal areas, above average strike
MS/PR-66	Few minor marks/hairlines not in focal areas, good strike
MS/PR-67	Virtually as struck with minor imperfections, very well struck
MS/PR-68	Virtually as struck with slight imperfections, slightest weakness of strike allowed
MS/PR-69	Virtually as struck with minuscule imperfections, near full strike necessary
MS/PR-70	As struck, with full strike
GV	Government issue price

No Grade	Description
90	Not Genuine
91	Artificial Color
92	Cleaning
93	Planchet Flaw
94	Altered Surfaces
95	Scratch / Rim Dent
96	Refund - No Service
97	Environmental Damage
98	Damage
99	PVC

In addition to the 1-70 scale presented above, the suffixes described below are added to some grades in certain series to expand on the numerical grade.