The devil is in the details. Is it factory nickel and engraving? You would need to get it lettered by Colt to find out if it left the factory the way it is now. If not, it would then depend on how old the nickel is and how good it was done. Same thing with the engraving. What is the barrel length? What are the grips made out of? What caliber is it chambered for? How much of the finish remains? Without knowing these things and many more, the best I can do is give you a price range of a few hundred to possibly multiple thousands.
50-350 usd
Depends on if it is a rifle or pistol
Such a coin does not exist. The Royal Mint produced no Farthing coins in 1870 or 1871.
There is no such coin. Canada did not have any coins over 50 cents in 1871.
The gum ball machine was patented in 1871 by Thomas Adams. In 1888 he began putting the machines on the train platforms in New York.
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value depends on overall condition...................
Alexander Graham Bell (March 3, 1847 - August 2, 1922) became famous almost immediately after he patented the first working telephone in 1876. He was 29 years old.
50 USD and up depending on specifics
value
value depends on condition. for value ask: felix@bedians.com
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.