I've just bought my first large batch of KGV stamps and went over a few this evening with a magnifying glass. I'm mostly looking for nice SON cancels, but this error caught my attention - the 'A' in 'HALFPENCE' looks rather more like an upside down 'V' (i.e., the hatch across the middle of the 'A' is missing). (There's also a bulge at the end of the first 'E.')
I'm wondering if this is a listed error.

Detail:

Thanks for looking!