All years of issue of the British One Pound coin are still potentially in circulation so, unless they are part of a Proof or Uncirculated mint set or are individual Proof or Uncirculated coins and in absolute mint condition, they are worth One Pound.
Such a coin does not exist. The British One Pound coin was first issued in 1983.
There was no 1811 British Sovereign or One Pound coin minted.
There was no British 1901 Two Pound or Double Sovereign coin produced.
There was no 1977 British One Pound coin minted. The first general circulation One Pound coins was minted in 1983.
There were no British Two Pound coins minted from 1888 to 1892 inclusive.
No, there is no Scottish One Pound coin. The 1995 and 2000 British £1 coin has the Welsh dragon on the reverse. The 1984 and 1989 British £1 coins have a Scottish design featuring a thistle sprig in a coronet on the reverse.
There was no 1891 British Two Pound coin issued.
Therre were no 1821 British Double Sovereign or Two Pound coins minted.
There was no 1886 British Two Pound coin minted. During the reign of Queen Victoria, they were only minted in 1887 and 1893.
The first gold Fifty Pound coin issued by the Royal Mint was in 1987.
The Pound or Sovereign was not introduced into the British system of currency until 1817 when it replaced the Guinea, and the first Two Pound coin (Double Sovereigns) was minted in 1820.
The Royal Mint produced no British Five Pound coins from 1938 to 1979 inclusive.