Modified coins have no collector value.
Any value it may have would be as an item of jewellery such as cuff links or a pendant.
After a quick scan of eBay, similar pendant type items are going for between £10 and £20 GBP.
The value of a 1939 George VI British silver half crown can vary depending on its condition and wear, but ranges between $3 and $20.
Yes, the 1939 coin is worth more, but only in Mint Uncirculated condition, otherwise they are worth about the same. The 1942 "One Dot" Threepence is a minting error and represents about 8% of the 1942 Threepences minted.
British Halfpennies have not been made from silver for hundreds of years. If you have a 1939 British silver halfpenny, it is because somebody plated it, and it has no value. A halfpenny made from silver would be worth about £20 GBP just because of the silver content.
There are no Scottish 1936 or 1939 Threepences. After the union of England and Scotland in 1707, Scotland used British coins from about 1814.
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.
1939 Lincoln with no mint mark, average value is 5 to 10 cents.
There were no British gold coins minted in 1939, and, if there were, they would have King George VI on them. There were no Queens from 1902 to 1952.
14th September 1939 @1415
September 8th 1939
what is value
There was no 1939 Eire (Irish) Penny minted.
A British 1951 nickel-brass Threepence (dodecagonal)(George VI), uncirculated and in absolute mint condition could fetch up to £125 GBP. If it has been circulated but still in good condition, it might fetch anything from £3 to £25 GBP. A British 1951 nickel-brass Threepence (dodecagonal)(George VI)(Proof FDC), uncirculated and in absolute mint condition could fetch up to £40 GBP. A British 1951 nickel-brass Threepence (dodecagonal)(George VI)(Matt Proof FDC) is of the highest rarity. 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.