Impossible to answer without a detailed description of all markings, finish, condition, box, accessories, papers and the serial number.
serial # 56649
thanks from rob
probably around 1977
if a single action army, made about 1906
A Colt single action 1860 army with that serial number was made in 1866.
Your colt single action army dates to 1881 with the serial number you provided.
100-10000 or more depending on EXACTLY what you have.
10-10000 USD depending on specifics.
0-1000 USD or more
100-1500 USD depending on specifics
around 1882. Value depends on what shape it's in.
0-1000 USD and up