Watch List notes:

The Isladulcie Collection | Henry IV or V, Light Coinage, Halfgroat, Class B, Tower, 'scowling' bust, ten arches to tressure, 1.84g, 10h, m.m. cross pattée [on obv. only] (DIG 1/3; North 1390; Spink 1769), small chip and split in flan, otherwise a bold fine, very rare.
provenance
D I Greenhalgh, part III, DNW 106, 6 February 2013, lot 153 - £460
Estimate: £200 - £300