In message , at 14:13:18 on Sun, 29 
Jun 2008, Steve Fitzgerald  remarked:
>At the time, I remember a lot of complaints that the new 50p and 2s/10p 
>were too similar and could be confused, especially by older people.  I 
>think originally the only difference was

They had different writing on them too :)

>that the 50p was very slightly larger and had the pointy sides whereas 
>the 2s/10p was round.

And an unmilled vs milled edge, iirc.
-- 
Roland Perry