You must all Colt. The serial number you list is not in the proper range.
You will have to call Colt to find out.
@39 yrs old
SN goes beyond what has been published. You will have to call COLT.
@ 40 years old. Call Colt and they can narrow it down
That colt commander with serial # 39487LW was produced in 1959. (39450LW-41500LW) mfg date is 1960, not sure if '70 or '80
It was made in 1960,about 49 years old.
You will have to call Colt with the serial number.
You will have to call Colt with the serial number to find out.
You must provide the serial number or call Colt and ask.
you will have to call Colt with the sn to find out.
You will have to call Colt.
No way to answer without the serial number.