done some research, not one find of such an error. the interesting thing I did find, was in my searches I found 2 BRIIANNIA error, also the obverse V's on closer inspection looks like they all were inverted A but someone spotted the mistake and replaced with V's possibly, cant be 100% but looks like there are remains of bars in all of them, very faint in the first. unbarred A's in Britannia is also noted for the year, having a closer look at the date looks to be the large numerals (which were used in 1701 incedently) recut over smaller? which possibly means an issue late in the year, before moving on to the 1701's especially with the dye wear noticable on ovbverse the main error is clear.