Watch List notes:

Halfcrown 1686 TERTIO edge with V over S in IACOBVS ESC 496A, Bull 752 About Fine, toned with an edge bruise at 3 o'clock. Very Rare and rated R3 by ESC and Bull, also see the SECVNDO edge coin with this overstrike error listed in this sale

Estimate: 150-300 GBP