Whatever British Coins were being minted in 1916, were still being minted in 1918.
The Half-Sovereign coin was not minted in 1917, but resumed minting in 1918. The Half-Sovereign was only periodically minted during the 20th century predecimal period, and was not minted at all from 1927 to 1936 and 1938 to 1979 inclusive.
The British Third-Farthing coin ceased to be minted in 1913, although it was only minted specifically for Malta.
It ceased to be minted in 1816.
Such a coin does not exist. The last British Halfcrown coin minted for circulation was minted in 1967. The last British Halfcrown Proof coin was minted in 1970.
There was no 1977 British One Pound coin minted. The first general circulation One Pound coins was minted in 1983.
There was no 1970 British Crown (Five Shilling) coin minted. The last British predecimal Crown (Five Shilling) coin to be minted was in 1965.
There was no 1974 British 25 Pence coin minted.
The last British Crown (5 Shillings) coin to be minted was the 1965 Churchill Commemorative.
There was no 1811 British Sovereign or One Pound coin minted.
There was no 1886 British Two Pound coin minted. During the reign of Queen Victoria, they were only minted in 1887 and 1893.
There was no 1978 British 25 Pence coin minted.
There were no British 1998 10 Pence coins minted for circulation. There were some minted for Proof and Mint uncirculated coin sets.
There was no British 1886 Crown (Five Shillings) coin minted.
There were no 1740 British Crown coins minted. The Crown coin was not regularly minted during the reign of King George II.