Charles I. 1625-1649. AR Halfcrown (14.20 g). Struck 1643-1644. York mint; im: lion. 

CAROLVS D G MAG BRIT FRAN ET HIB REX, Charles on horseback left, holding sword, horse with long curling mane; EBOR below.
CHRISTO AVSPICE REGNO, crowned oval coat-of-arms; crowned C R at sides; small floral sprays at ends of legend, larger sprays as dividers. 

Brooker 1083 (same dies); North 2314; SCBC 2868.
Used by permission of CNG, www.cngcoins.com 
Triton VIII, Lot: 1788. Jan 10, 2005.