BMC 697.
Unbarred A's in Britannia.
Slabbed and graded by NGC as MS62. Some slight weakness in places otherwise an exceptional copper with lovely fresh surfaces.
The certification number for this coin is 4861755-003 and can be found here.
Ex Dr Basil Nicholson collection (this mentioned on NGC holder) lot number 133 (purchased from Simon Porter 31-3-1980). Described by Nicholson as 'quite exceptional'.