6 Pence - Charles I 4th bust, group D

The Group D sixpences were produced during the years Charles I was attempting to govern without Parliament — the period historians call the Personal Rule. Mint output during the 1630s was shaped less by trade demand than by the Crown's chronic need to finance itself through extra-parliamentary means, including forced loans and ship money levies that were generating serious political resistance by the mid-decade.

Spink numbers 2811 through 2813 differentiate the group by mintmark, running from the crown through the harp and portcullis marks. The portcullis, used 1633–34, is the scarcest of the three.