Watch List notes:

The Frank Viles Collection of Sixpences | William III (1694-1702), Sixpence, 1697, Bristol, struck with a York obverse die [?], first bust, B over y [?], rev. 'small' crowned shields cruciform, five strings to late harp, edge obliquely milled, 6h (Spink 3532; cf. ESC 1263 [1555A]), good to fair, the overpunching clear and different to the known 'B over E' varieties, unlisted, very rare thus