Watch List notes:

Charles I, Newark besieged, sixpence, 1646, arched crown between C-R, mark of value below, rev. OBS NEWARK, date below (S.3146; N.2642), a little flat in top corner, toned, very fine
£1750-2250
An attractive piece.
*ex St James's Auction 5, 27 September 2006, lot 333