1816 Sixpence - with Diamond or lozenge stops after GEOR:
Square stops after D: G:
Square to slightly Diamond stops after BRITT:
Diamond or lozenge stops after F: D:
This is possibly a unique example of this type of legend stops on an 1816 Sixpence.
Every other 1816 Sixpence I have examined (and there have been quite a few !)
and in fact any other coin from 1816 onwards have ALL had circular stops in the legend !
This 1816 sixpence also has a strange extra bit to the front of George's throat.
As far as I can tell this is not due to a part of the reverse showing through from a clashed die.