Watch List notes:

James I (1603-25), Halfcrown, third coinage, 18.84g, m.m. trefoil, king on horseback right, rev. crown and plumes over shield (N.2123; S.2667), initials rn scratched retrogade behind king, otherwise toned, good fine.
provenance
Spink 228, 25-26 March 2015, lot 617
Estimate: £300 - £350