Watch List notes:

Halfcrown Charles I 1642 Exeter Mint, Obverse: King on spirited horse galloping over arms, no stops either side of the mintmark, Reverse: Oval Garnished shield with 1642 in cartouche below, with stops either side of the mintmark S.3071, North 2534, Brooker 1013, Mintmark Rose 13.29 grammes, VG/Near Fine, with King on horseback worn, the legends bold on both sides, an extremely rare type of which only 23 examples are believed to exist, with 7 of these examples in museums

Estimate: 4000-6000 GBP