Watch List notes:

BRITISH COINS, Charles I, Silver Halfgroat, Exeter mint, 1644, crowned bust left, value behind in field, initial mark rose both sides, rev oval quartered shield, date in legend, 0.70g (Brooker 1073; N 2581; S 3090). Struck on a small planchet as usual, excellent portrait, toned, nearly extremely fine and rare this nice.
ex Patrick Finn Memorial List, list 19, 2001, item 314

ex Alan Morris Collection, dispersed via Lloyd Bennett over last decade

Estimate: £600-800