The Royal Mint produced no British Threepences from 1801 to 1833 inclusive.
Such a coin does not exist. The Threepence was not introduced into the British currency until about 1550.
There were no 1804 British Sovereigns minted. The Sovereign was reintroduced into the currency in 1817.
The British Threepence is part of a redundant currency that was withdrawn and demonetised in 1971. It no longer has an exchange rate with other currencies.
British Threepences have been minted for hundreds of years. Any collector value would depend on the year and condition of the coin.
The only British 1831 Threepence issued was the Maundy Threepence. A British 1831 Maundy Threepence (FDC), uncirculated and in absolute mint condition could fetch up to £40 GBP. If it has been circulated but still in good condition, it might fetch up to £20 GBP. A reputable coin dealer will be able to give a more accurate valuation.
U.S. or British? Post new question.
I cannot find any reference to such a coin . Please check.
A British 1978 (silver) Maundy Threepence, uncirculated and in absolute mint condition could fetch up to £20 GBP. A reputable coin dealer will be able to give a more accurate valuation.
The dodecagonal brass British Threepence ceased to be legal tender on 31-Aug-1971.
A British 1852 Threepence (issued for colonial use only), circulated but still in good condition, might fetch anything from £60 to £500 GBP. A reputable coin dealer will be able to give a more accurate valuation.
Queen Elizabeth I, Third Coinage A British 1570 Threepence, circulated but still in good condition, might fetch anything from £35 to £135 GBP. A reputable coin dealer will be able to give a more accurate valuation.
This will not work 100% of the time, but if you enter your question as follows and the answer is already on the site, you should see what you are looking for. What is the value of a 1941 British Threepence What is the value of an 1891 British Sovereign etc