Watch List notes:

Henry V (1413-22), Halfgroats (2), Light Coinage, Tower, class E, 1.74g, 7h, m.m. pierced cross (on obv. only), broken annulet to left of crown, mullet on breast, rev. quatrefoil after posvi, single and double saltire stops (N.1391b; S.1773), fair to fine; another, class E/G mule, 1.88g, 4h, m.m. pierced cross (on obv. only), mullet on neck, no marks by crown, f over z in ...angl z f, rev. as before (DIG E1/G6; N.1393; S.1773/1775), small edge chip, otherwise fine, very rare, a good pair (2).
provenance
i) Noble Numismatics, June 2005 [via M Senior]
ii) D I Greenhalgh, part III, DNW 106, 6 February 2013, lot 158
,
See Galata's Guide to Medieval Half-Groats, Class G, DIG 2 (Class E DIG 1) obv.; and Class G DIG 6 rev. this coin.
Estimate: £300 - £400