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.
No, there is nothing special about the 1979 Guernsey Penny other than there was more of them minted (2.4 million) than in any other year.
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.
Your coin is a Bailiwick of Guernsey 7 sided 20 Pence coin. It has the Arms of Guernsey on the obverse and a milk can symbolising the industry of Guernsey on the reverse.
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.
The three lions is the Coat of Arms of the Bailiwick of Guernsey and it appeared on Guernsey 50 Pence coins from 1969 to 1984.
elizabeth 11 bailiwick of guernsey 1992 10p coin worth
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.
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. A Bailiwick of Guernsey 1983 cupro-nickel 20 Pence coin (heptagonal), uncirculated and in absolute mint condition could fetch up to £1 GBP. A reputable coin dealer will be able to give a more accurate valuation.
This commemorative coin has what is known as a 'scrap' value. Like its British counterpart, the £25 Britannia, it contains 1/4 Troy Ounce of Gold. Gold as at 20th September 2010 was £815 an ounce. It therefore has a value of £204.00. The price of gold can rise as well as fall of course and this needs to be remembered.
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.
As a Crown Dependancy, Guernsey uses the same sterling system as the rest of Britain, so their 20 pence is worth the same as a 20 pence piece from England. However the coin is only 'legal tender' in the Bailiwick of Guernsey itself. While most people will happily accept one as payment, it can be refused when offered to pay a debt, though a bank will usually accept one.
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 Pounds in Jersey. The Bailiwick of Jersey currency (JEP) is pegged at par with the British Pound Sterling (GBP) and the Jersey decimal coinage is near identical in dimensions, composition and history to the equivalent British coins. Jersey currency is "legal tender" only in Jersey, 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 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.