It seems that there were two different versions of this coin:
- DA die mark with larger busts of Queen
- no die mark with smaller busts of Queen




What do you think, is it a small difference that require a yearline variety or this should be listed as separate page?
I just noticed this today, when checked the die marks of my 50p in Pobjoy cards. Before, I thought I have a duplicate.
Similar coin was reissued also after the death of Queen Elizabeth II, but it was with black colour and with double date 1926 2022. On the marketing graphics from Pobjoy the busts are bigger (see here) when all known real coins are with smaller busts.

Just to inform referee: @Frenchlover