Watch List notes:

The Frank Viles Collection of Sixpences | Charles I (1625-1649), Sixpences, 1638-1639, Nicholas Briot, Second Milled Issue, Tower, both with reverse CHISTO error (2), m.m. anchor; m.m. anchor [with additional mullet] (Spink 2860; North 2242; Brooker 730, 731), usual if heavy adjustment marks on flan, the second with some surface marks and a flan flaw on portrait, otherwise toned, about very fine (2)