A One Pound with "no faces on it" is possibly a Guernsey One Pound coin.
These coins 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 in Guernsey.
The Bailiwick of Guernsey currency (GGY) is pegged at par with the British Pound Sterling (GBP) and the Guernsey decimal coinage is near identical in dimensions, composition and history to the equivalent British Coins. Guernsey currency is "legal tender" only in Guernsey, but may be regarded as "acceptable tender" in Britain.
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
There was no 1977 British One Pound coin minted. The first general circulation One Pound coins was minted in 1983.
As I type this the value of 1 pound of gold is $18,040.00
There were 20 shillings in one pound. It was replaced by the 5p coin.
The term "pound" to describe a British monetary value has been in use for hundreds of years, but there was no official coin or banknote to the value of "One Pound" and called "One Pound" issued until much more recently. The modern Sovereign (with a face value of a One Pound or 20 Shillings) was reintroduced into the British currency in 1817. The first British coin with a "Pound" denomination ascribed to it was the 1820 Five Pound gold coin. The Bank of England produced One Pound notes periodically from 1797 to 1821. The first official regular issue of British One Pound note, which was actually a Treasury Note, was first issued in 1914. The first British decimal One Pound coin was issued in 1983.
The Sovereign is a coin, not a value. It does not have a symbol. The value of the Sovereign is One Pound. In the pre-decimal currency, it was also equal to One Pound (or 20 Shillings).
There is a one pound coin and a two pound coin but not a three pound coin.
These coins are still in circulation. Unless they are in mint condition, they are worth One Pound.
Many countries have a coin to the value of one unit of currency (one pound, one euro, one dollar, etc.).
The Bank of England issued the last One Pound note in 1984, then withdrew and demonetised the One Pound note in 1988, after it was replaced by the One Pound coin in 1983.