Great Britain, 20 Pence - Elizabeth II 4th portrait ,1992

During 1992 the effigy was enhanced, becoming slightly larger; as result we will see two varieties in circulation.

Could you please add a new line in KM# 990?

Many Thanks
giuseppe75

Apologise 3rd portrait instead of 4th and KM# 939 rathen than KM# 990

images please!

https://en.numista.com/forum/topic3402.html

Is this the same subject ? If so then I added images there a few weeks ago.
Perhaps it is being asked that the differences are to be added into the Year List (apart from in the remarks) so that it can be marked which version is in a collection/exchanges.  

ok - done.
what about the 1997 varieties. what are they? does anyone have a clue?