1542-1558 AD., Edinburgh in Scotland, Mary I., Queen of Scots, Billon Bawbee, Seaby 5433.

Edinburgh in Scotland, Scotland. Mary I. Stuart, Queen of Scots (1542-1567), struck circa 1542-1558 AD.,
Billon Bawbee (six pence Scots) (21 mm / 1,66 g),
Obv.: [+ MAR]IA D G R SCOTORV, crowned thistle flanked by M R. The Latin inscription translates as: 'Mary, by the Grace of God, Queen of Scots'.
Rev.: + OPPIDVM EDINBVRGI , saltire cross with crown at centre and cinquefoils either side. The Latin inscription translates as: 'Town of Edinburgh'.
Seaby 5433 .

The cinquefoils refer to the Earl of Arran who was acting as Regent while Mary was still under age. The obverse bears a crowned thistle flanked by the letters 'M' and 'R' (for Regina = Queen).
Minted at Edinburgh between 1543 and 1554, during the reign of Mary, Queen of Scots. The coin was worth six pence Scots.
The name 'bawbee' is derived from 'Sillebawby' - Alexander Orrok of Sillebawby was Master of the Mint when these coins were struck.