The Bailiwick of Guernsey One Pound coin issued in 1981 and 1983 has the Bailiwick of Guernsey "Arms" on it.
The Bailiwick of Guernsey One Pound coin issued from 1985 onwards, features Queen Elizabeth II on the obverse.
If you are referring to the 2002 Bailiwick of Guernsey 1 Pound coin, then it cointains 0.9198 troy ounces of silver currently worth just over $30US though the coin is probably worth a bit more than that. No Bailiwick of Jersey general circulation coin contains any precious metal.
They are not rare on 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.
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.
A Bailiwick of Guernsey 1995 Five Pound coin (Queen Elizabeth the Queen Mother), uncirculated and in absolute mint condition could fetch up to £15 GBP. A Bailiwick of Guernsey 1995 Five Pound coin (Queen Elizabeth the Queen Mother)(Proof in silver FDC), uncirculated and in absolute mint condition could fetch up to £45 GBP. A Bailiwick of Guernsey 1995 Five Pound coin (Queen Elizabeth the Queen Mother)(Proof in gold FDC), uncirculated and in absolute mint condition could fetch up to £200 GBP. A reputable coin dealer will be able to give a more accurate valuation.
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.
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.
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.
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 20 Pence 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. The wine jug is a milk can.
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 Two Pence 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.
Guernsey pound was created in 1921.
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 50 Pence 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.
The Guernsey decimal New Half Penny coins were first and last issued for circulation in 1971 and were withdrawn from circulation and demonetised in December 1984. 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 have little or no value. 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.