its worth 5 isle of man 1973 gold sovereigns, £277 each on ebay Mar 2012 = £1,385
50 cents
There was no 1977 British One Pound coin minted. The first general circulation One Pound coins was minted in 1983.
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.
1 pound
If it was found in change, the coin is face value. A uncirculated coin is about 25 cents.
Please check your coin. You possibly refer to the 1986 commemorative Two Pound coin.
There was no British 1901 Two Pound or Double Sovereign coin produced.
Such a coin does not exist. The English have never produced a 4 Pound coin.
Spend it.
£5
72.90