The value of a 1797 Georgius Rex coin, specifically a British coin like the penny or halfpenny, can vary significantly based on its condition, rarity, and demand among collectors. Generally, it can range anywhere from a few dollars for lower-grade examples to several hundred dollars or more for higher-grade coins. To get an accurate valuation, it's advisable to consult a reputable coin dealer or reference a current numismatic guide.
You have a British coin ("Georgius IV D.G. Britannia Rex F.D." is abbreviated latin for "George the Fourth, King of Britain and Defender of the Faith") dated 1821. To get a value, the denomination and condition of the coin would need to be known.
This very much depends on condition, and what denomination the coin is. This can be checked on http://www.coins-of-the-uk.co.uk A coin of 1720 would say Georgius Rex or Georgivs Rex. George IV did not reign until the 19th century.
The coin you described is a British crown or similar denomination featuring King George IV, who reigned from 1820 to 1830. Its value depends on factors such as its condition, rarity, and demand among collectors. Generally, coins from this era can range from a few dollars to several hundred dollars, with higher values for coins in excellent condition or with unique features. For an accurate appraisal, it's best to consult a numismatist or a reputable coin dealer.
The 1818 Georgius III Dei Gratia coin is a British gold coin featuring King George III, who reigned from 1760 to 1820. It typically represents a sovereign or a similar denomination, characterized by its gold color and intricate design, which includes the king's portrait on one side and a heraldic emblem on the other. Such coins were minted during a time when gold currency was standard in Britain, and they are often sought after by collectors today for their historical significance and craftsmanship.
Your coin is either a British 1797 "Cartwheel" Twopence 41mm in diameter, or a British 1797 "Cartwheel" Penny 36mm in diameter. If somebody has drilled a hole in it, it might be worth a few Pence. Modified coins have no collector value.
You have described every British coin issued in 1797. Please provide the type of metal it appears to be made from, the diameter of the coin, the inscriptions and the design on the reverse.
Apart from George III, the only person depicted on British 1797 coins is Britannia, the female personification of Britain. She is usually shown as being seated and holding a trident and shield. In 1797 she is on the reverse of the "Cartwheel" Twopence and the "Cartwheel" Penny.
Please check your coin. Queen Anne was on the throne on in 1709, George I did not come to the throne until 1714.
You have a British coin ("Georgius IV D.G. Britannia Rex F.D." is abbreviated latin for "George the Fourth, King of Britain and Defender of the Faith") dated 1821. To get a value, the denomination and condition of the coin would need to be known.
Please check your coin, George III died in 1820.
Its value would depend upon which coin it was and its condition.
There were only two British "Britannia" coins minted in 1797, one was the copper Cartwheel Twopence at 41mm in diameter, the other was the copper Cartwheel Penny at 36mm in diameter. They are identical except for the size. See the link below.
Please post a new, separate question with the coin's denomination.
This question is impossible to answer because it doesn't include a country, denomination, date, or condition.
Look up coin dealers in your area and try one of them. A reputable coin dealer will confirm your coin as genuine and give you a valuation and maybe an offer to purchase it from you. Alternatively, try eBay.
Such a coin does not exist. George III was born in 1738 and was king from 1760 to 1820.