Halfcrown, ND. Charles I, 1st milled issue, by Nicholas Briot. First issue, with flower and "BB" initial marks.

CAROLVS . D . G . MAG BRITAN FRAN ET HIB REX (flower), the king riding horseback left, holding sword.
CHRISTO . AVSPICE . REGNO C-R, crowned coat of arms.

Seaby 2853

Courtesy Ira & Larry Goldberg Auctioneers, Beverly Hills, CA. www.goldbergcoins.com
Sale 31: The Pre-Long Beach Auction May 30 - June 1, 2005, Lot 2163.