your colt lawman mkIII was made in 1978.
You must call Colt.
You must call Colt to find out.
Impossible to answer without the serial number.
50-500 usd
The Lawman mk III Colt 357 mag is valued at $1,000 in excellent condition. Good condition value is $800.
about 1973
1972
Move the cylinder release to the rear
What year is a trooper mark 3 serial 10192j.With the serial number that you have provided,your Colt Trooper mark III was made in the year 1975.
Colt data at Proofhouse.com
No serial number provided.