The Royal Mint did not produce any Farthings in 1871 and, if they had, they would have produced them in bronze, which might appear as a dirty gold colour.
Farthings were made from bronze. If your Farthing appears to be gold, somebody has probably gold plated it. Modified coins have no collector value.
All British 20th century Farthings were made from bronze. If you have a gold Farthing, it is because somebody has plated it. Modified coins have no collector value.
All British 20th century Farthings were made from bronze. If you have a gold Farthing, it is because somebody has plated it. Modified coins have no collector value.
Modified coins have no collector value.
Modified coins have no collector value, any value would be associated with the bracelet. George V died in 1936 and Farthings are bronze, not gold.
Not gold, but gold-plated. The US never issued a gold half-dollar, plus in any case a coin that large made of gold would have been worth about $20 in 1871. Unfortunately the plating has destroyed most of its collectible value. You may be able to find someone willing to pay extra for it as a curiosity however.
Modified coins have no collector value.
Modified coins have no collector value.
Since Farthings were not minted in gold, this would most likely be a Queen Victoria Coronation commemorative token or medallion. It would be worth what ever the current bullion price for gold is worth.
A British 1807 copper Farthing (George III), uncirculated and in absolute mint condition could fetch up to £175 GBP. If it has been circulated but still in good condition, it might fetch anything from £8 to £50 GBP. A British 1807 Farthing (George III)(Copper Proof FDC), uncirculated and in absolute mint condition could fetch up to £300 GBP. A British 1807 Farthing (George III)(Bronzed Proof FDC), uncirculated and in absolute mint condition could fetch up to £250 GBP. A British 1807 Farthing (George III)(Gilt Copper Proof FDC), uncirculated and in absolute mint condition could fetch up to £400 GBP. A British 1807 Farthing (George III)(Silver Proof FDC), uncirculated and in absolute mint condition could fetch up to £3,000 GBP. A British 1807 Farthing (George III)(Gold Proof FDC), is considered extremely rare. NOTE - The reverse of these coins is upside down to the obverse. This is normal. The values quoted are the best possible for the best specimens in their grades, but may be significantly lower due to varying demand for the coin and the prevailing economic climate. A reputable coin dealer will be able to give a more accurate valuation based on inspection of the coin.
The Halfcrown is a silver coin. If you have a gold coin it is because somebody plated it. Modified coins have no collector value.
Such a coin does not exist. In the event that somebody did produce a gold Halfpenny, it would be worth whatever the current bullion value of gold is.