The firearms section of Answers.com is full of questions by people asking what their firearm is worth. In pretty much every case the answer is the same. None of us can assign a meaningful value to your firearm without actually being able to inspect it, assess its condition, and determine if it remains operable.
One of your best options for finding out what a firearm is worth would be to take it to a Cabela's store, and inquire with the administrator of their gun library. You could also take it to a gunsmith who can give you an opinion, though he will never give you what it is actually worth since he will need to sell it at around that price to make a profit for himself.
Could be anywhere from $50 to more than $1000, but there are some problems here- there was not an 1843 revolver, and the Navy revolver is typically .36 cal, not 44- and you did not list all the markings on your revolver. There have been many reproductions of varying worth and quality- many carry a roll marking on the cylinder of ships, and the word "engaged" and the date "1843"- which was a naval battle. You would need a gunsmith to look at yours, and tell you exactly what you have.
i have found this old revolver in a pawn shop for 20 bucks how much is it worth
1843
This is a modern reproduction. Depending on condition, anywhere from $75 to $200.
It can be worth anywhere around $30-$175
1843large penny
Check that date again, because there's no such thing as an 1843 Indian head cent.
The Navy revolver was not .44 caliber (it was.36 caliber), and was not made in 1843. Without seeing the gun, will tell you it is likely you have a reproduction of the Colt revolver made in Italy by Pietta. You will need a hands on appraisal by an experienced dealer or collector. Modern day reproductions are in the $200 range, depending on condition. PS- Ormsby invented the machine that performed roll engraving. While he was an engraver, his actual engraving was for printing plates for bank notes. Not guns. We have been asked about a revolver with THAT serial number at least 5 times, reinforcing the belief that it is a reproduction.
You will need to get a letter from Colt. They cost between 100-300 USD depending on exactly what you have.
Modern reproduction. Value may be $75-$150, depending on model and condition.
That would depend on Mr. Ormsby's reputation in the engraving community, whether it was done at the factory or after market and overall condition of the piece.
100-300 USD
In 1843, the value of a schilling would have depended on the country it was from, as many countries used schillings as their currency. For example, in Austria, one schilling was equal to 100 kreuzer. In Britain, one British shilling was equal to 12 pence.