Bonnet Piece Publique Deposited
A gold coin of James V of Scotland, issued only in 1539 and 1540, and remarkable as being the earliest dated Scottish coin.
It is so called from the king's head being decorated with a bonnet, or square cap, in- stead of a crown.
Its weight is 88 1/2 grains, and there are one third and two third pieces of similar type.
This coin is sometimes referred to as a Ducat, but this designation belongs more properly to the gold coin struck by Mary Stuart in 1558.
- Frey's Dictionary (American Journal of Numismatics, Vol. 50, 1916)