1955
Model 6601
1954.
You will have to call Colt to find out.
You will have to call Colt to find out.
.22 cal
100-1000 USD
It's a 1954.Thanks!
Just looked at one on internet that looked in great condition for $795
Fiind a copy of "The Black Rifle", both volumes. You can research it then.
It was the 106th made in 1962 as 1962 started with serial number 81100.
Call Colt's Manufacturing Company
Customer Solutions
 at800-962-2658 and they will tell you.