With a lot more closer inspection there are a lot of worn/dirty 25p and 50ps and many, many slightly rounded edged (and seriously, I mean slightly) of the £1s and £5s which makes sense. There are many literally brand new ones with sharp edges and all good features that will be the first ones sent to all buyers (along with the added odd freebies). I think they rounded ones only stand out because I have the better ones to compare to and when in racks you can see it better. Lots have a white talc like look which I attribute to no use at all too.
If anything else emerges from my closer inspections I will announce.
4 sets sold so far and hope to manage to get a few more sent to appreciative homes in the next few weeks.
Everybody seems to be waiting for the plaques, soon hopefully.