British World War I: 1914 Mons Star. The majority of recipients were officers and men of the pre-war British army, specifically the British Expeditionary Force (the Old Contemptibles), who landed in France soon after the outbreak of the War and who took part in the Retreat from Mons (hence the nickname 'Mons Star'). 365,622 were awarded in total.
It was really a pretty little coin: The English 6d of Oak sprigs and acorns ~ The sixpence, known colloquially as the tanner, or half-shilling, was a British pre-decimal coin, worth six (pre-1971) pence, or 1/40th of a pound sterling. The first sixpences were struck in the reign of Edward VI in 1551 and continued until they were rendered obsolete by decimalisation in 1971.