What is the age and value of a colt single action army 45 frontier revolver in excellent condition with sn 13549SA also says patent sept 19 1871?

Don't know the value, but based on the serial #13549SA, it was produced in 1957. if looking for value ask: felix@bedians.com Value will depend on if your definintion of "excellent" coincides with the one used by seller/buyer/collectors and if the box and original papers are included. Value range from 500-1000 USD.