50 USD
1871
You will have to get it lettered by Colt to see if it is original. If not, 100-500 USD
1871
Less than 100 to over 1000 depending on specifics.
50-350 usd
Impossilble to answer without the name of the maker and the condition.
I assume you colt is a single action revolver ????? if so, made about 1888
500,000
This will need a hands-on appraisal by someone knowledgeable in antique firearms- and it will depend on exact make, model, and condition- none of which you gave us. By the way, the 44-40 cartridge was not developed until 1873.
1000-10000 USD or more. You need a professional appraisal.
800 dimes make $80.
The word of God.