The British 10 Pence has always been a coin since its first issue in 1968.
10 Pence (from 1968 - 1992) 28.5 mm diameter, weigh 11.31 grams and are made from 75% copper and 25% nickel. The edge is milled. Now demonetised and no longer legal tender.
10 Pence (from 1992 to present) 24.5 mm diameter, 1.85 mm thick, weigh 6.5 grams and are made from 75% copper and 25% nickel. The edge is milled.
The British 20 Pence coin was first released in 1982.
Fifty pence - British coin - was created in 1969.
Twenty pence - British coin - was created in 1982.
Five pence - British coin - was created in 1968.
Ten pence - British coin - was created in 1968.
Zero. There is no silver in any British general circulation 50 Pence coin, and there has been no silver in any British general circulation coin from 1947 onwards.
In 1944, the British used Pounds, Shillings and Pence. The British have never used cents. There has never been a British 10 cent coin and the British 10 Pence coin was first issued in 1968.
There was no 1974 British 25 Pence coin minted.
Such a coin does not exist. The British 50 Pence coin was first issued in 1969.
There are 50 British Pence in a British 50p coin.
There was no 1978 British 25 Pence coin minted.
There were no British 1975 25 Pence coins issued.