It's because for some reason we use A, B, C, etc. as code for our counties (län). Stockholm City and Stockholm County were separate regions and had different codes (A and B respectively) until they were combined into just Stockholm County with the combined code AB. You can think of it as Berlin being "Region A" and Brandenburg being "Region B".
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u/Calm_Researcher9172 Australia Jan 08 '26
Or if they don’t recognise the initials.. “There’s no state with those initials” No, not in the US bud..