The milled silver threepences of Charles II form two types. There is the undated issue which looks very like the earlier hammered coinage, with a crowned left-facing bust of the king with the denomination indicated by III behind his head, and the inscription , with the reverse showing a shield encircling the arms of England, Scotland, Ireland and France with the legend . This was followed by the dated issue, issued each year from 1670 to 1684, where the obverse features a right-facing uncrowned bust of the king and the inscription , with the reverse showing three crowned interlinked "C"s (indicating the value) and the inscription . All milled silver threepences were 17 millimetres in diameter and weighed 1.5 grams – dimensions which were unchanged until near the end of the reign of George III.