Requires a professional appraisal. Could be 100-10000 or more.
made about 1897
You will have to call Colt with the sn to find out.
10 years it is not 10 years but i do not Know how old it is
I assume your single action is pre-war ? If so, then made about 1907. As to the caliber, check markings on barrel. that should give the caliber.......
AFAIK, Colt never made a single shot pistol
1986
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.
if you are taalking about a single action ??? made 1910
about 1908
22 cal. single action colt frontier serial# 34170K was made in 1968
your colt single action was made in 1970.