Sorry but no U.S. dollar coins exist dated 1805. Look at the coin again and post new question.
The U.S. did not strike any silver dollars for circulation between 1804 and 1835 inclusive. If you have a coin dated 1805 it's a counterfeit. If you have a different date, please post a new question.
All US silver dollars are round, but none are dated 1805. Please check your coin again and post a new, separate question with more information that might help to ID it.
There was no 1805 British Halfcrown minted.
Sorry, no US 5 cent coins exist dated 1805 first year of issue was 1866
The CAROLUS IIII DEI GRATIA coin to which you possibly refer was a large silver Spanish-American Eight Reale (pieces of Eight) coin minted at various mints in Spain, Mexico, South and Central America. Due to a shortage of suitable metals during the Naploenic Wars, and a general shortage of circulating currency, the English acquired and countermarked the Spanish-American 8 Reale coins (and others) and used them as "Emergency Issue", referring to them as "Spanish Dollars". The Spanish-American 8 Reales coins were countermarked with a small image of George III and circulated as Four Shillings and Ninepence until 1811. Any of these coins in any reasonable condition, as long as they are identifiable and legible, might fetch well over £100 GBP.
No US silver dollars were minted for circulation from 1804 to 1835 inclusive, and Trade dollars were only minted from 1873 to 1885. If your coin says ONE DOLLAR and is dated 1805 it's either a fantasy coin, a bullion "round" or one of the many fakes...
The Royal Mint did not produce any coins in 1805. Due to the expenses of Britains ongoing wars at the time, there was very little silver and copper coinage minted during the late 18th and very early 19th centuries. Due to the shortage of coins, counterfeiting was rife. You may well have a counterfeit coin which are collectible in the own right.
1805 1805 1805 1805
There were no British Pennies minted from 1798 to 1805 inclusive.
The Sovereign was not reintroduced into the British currency until 1817.
No US silver dollars were minted for circulation from 1804 to 1835 inclusive.If your coin says ONE DOLLAR and is dated 1805 it's either a fantasy coin, a bullion "round" or one of the many fakes that have come from Asia during the last couple of decades.Priceless,1. they are either counterfeits or reproduction.2. if you do have one take it to mint officals
The only British coin issued in 1805 was the gold Half-Guinea coin. A British 1805 Half-Guinea is considered to be extremely rare. A reputable coin dealer will be able to give a more accurate valuation.
An 1805 Draped Bust U.S. Large Cent, graded as MS-60 starts at $3,000.00. This value dramatically changes depending on the color, contact marks and surface condition. If the coin actually is a Mint State example it needs to be seen for an accurate assessment of the value.
The Royal Mint produced no One Shilling coins from 1788 to 1815 inclusive.
All early U.S. coins need to be seen for an accurate assessment. The 1805 Draped Bust Half Cent has 3 varieties and the values are very different. And the grade and condition of the coin very much affects the value. If it's still in collectible condition it would have a minumin value of $50.00. Take to a coin dealer for a better idea of value.
The U.S. did not strike any dollars between 1805 and 1835 inclusive.If you have a dollar coin with the date 1822 on it, it is counterfeit.If you mean 1922, see the price list at http://www.numismedia.com/fmv/prices/peadlr/pricesgd.shtml for exampleSorry, no US dollar coins were struck dated 1822
December 8 1805 was a Sunday.
There were 17 states in the US in 1805.
1805 Pattern Halfpennies (Britannia and wording BRITANNIARUM on the reverse) are extremely rare. Choice FDC (Fleur-de-coin i.e. perfect) examples can make £500 - £700. They are normally found in mint state as they were never issued for circulation. Do not get these confused with the 1805 Irish halfpenny with harp...these are worth considerably less.
1805, Sacagawea had her son Jean Baptiste
1805 + 25 + 52 = 1,882