Elizabeth I, Sixth issue, Halfpenny, mm. key, 0.26g/10h (S 2581); James I, Second coinage, Halfpenny, mm. mullet over bell, 0.28g/12h (S 2663); Charles I, Tower mint, Halfpenny, no mm., 0.24g (S 2851) [3]. Fine to very fine £120-£150