Stuarts, Charles I, AR sixpence, Aberystwyth mint, 2.76 gr. 1638-1642 AD, 

Obv: CAROLVS D G MAG BRI FRA ET HIB REX, bust left, wearing 
single arched crown, triple plumes to left, VI behind, 'book' 
mintmark. 
Rev: CHRISTO AVSPICE REGNO, coat of arms within ornate circle.

Condition:
Near fine, short cut to flan edge, rare.

Seaby 2888; N. 2335.

With permission of TimeLine Auctions (www.timelineauctions.com), March, 2013