Watch List notes:

Charles II (1660-1685), Halfcrown, 1671 vicesimo tertio, third laureate and draped bust right, rev. crowned shields cruciform, six strings to harp, cyphers in angles (ESC - {-}; S.3366), this variety not known to Bull, otherwise a bold fine.
provenance
Gray collection
Seaby Coins and Medals Bulletin, November 1986, G475 - £40
Estimate: £150 - £200