Merk (coin)

James VI: half merk or noble
Crowned Scottish arms flanked by denomination: 6 [shillings] and 8 [pence]	Compound cross fleury, quartered with crowns and thistles
1577 – Silver content 6.57 g (theoretical weight 103.8 grains, equivalent to 6.73 g). Grueber 135

The merk (Scottish Gaelic: marg) is a long-obsolete Scottish silver coin. Originally the same word as a money mark of silver, the merk was in circulation at the end of the 16th century and in the 17th century. It was originally valued at 13 shillings 4 pence (exactly 2⁄3 of a pound Scots, or about one shilling sterling), later raised to 14s. Scots.^[1]