Watch List notes:

Halfcrown Charles I Group III, Third horseman, type 3a1, no caparisons on horse, scarf flies from King's waist, Reverse: Oval garnished shield, S.2773 mintmark Tun on obverse, reverse mintmark Tun overstruck, the underlying mark unclear, 14.80 grammes, Good Fine and bold, the obverse with some old scratches

Estimate: 150-200 GBP