Update 20th June 2013.
As well as the basic grades listed on this page, collectors will often encounter grades like ‘GVF’ for example.
This indicates the coin is not exactly a ‘VF’ (Very Fine). In fact, the ‘G’ stands for ‘Good’ so a ‘GVF’ coin would be better than ‘VF’ but not quite ‘EF’.
The preceding letters encountered using the British grading system are: ‘G’ for Good, ‘N’ for Near and ‘A’ For about.
The range between ‘VF’ and ‘EF’ for example looks like this: ‘VF’, ‘GVF’, ‘NEF’, ‘AEF’, ‘EF’ and from ‘F’ to ‘VF’ looks like this: ‘F’, ‘GF’, ‘NVF’, ‘AVF’, ‘VF’.
Sometimes, mainly due to a coin being struck with one side’s design slightly higher or more complex (giving better protection), it is possible that a coin will have less wear on the ‘Heads’ side than the tail (or vice versa).
If this is the case you may see some coins graded as, for example, ‘VF/NEF’.
This does not mean the coin is somewhere between ‘VF’ – ‘NEF’ it means that the obverse (heads side) is Very Fine and that the reverse (tails side) is Very Fine or ‘VF’.
A coin with some wear to the highest areas of the design but has seen limited circulation.
More hair detail is evident as also detail on the other designs.
Just as an average guide a coin that has been in normal circulation for approximately 5 years would probably qualify for ‘VF’ status.
Massive Thanks to Garth Tuxford.