Do I understand you correctly or do we have a language problem here? Are you really claiming that an assay office officially informs the public that their control mark looks like "A
", but in order to mislead fakers punches "A
" on an object? I have dealt with silver quite a lot during my adult life (I am not young) but I have never ever neither read it anywhere (I have a rather huge library) nor heard it from anyone before and neither have my colleagues. If it is as you claim please show some hard evidence. Without that I never buy your statement and I don't think anybody else does it either. This Estonian case is strange indeed!
Of course anybody can publish an indicative picture like this below but it has not much to do with how the official hallmark looks like.Merry Christmas to everybody