first adjustable sights used how early

[JimF4M1s (Deceased)]

He was probably about 18 on that one...

He was 18. Born in 1931 and the movies was released in 1949.

He was in quite a few military movies.
Halls of Montezuma 1951
Operation Pacific 1951
Fighting Coast Guard 1951
Torpedo Alley 1952
Destination Gobi 1953
Mister Roberts 1955
Francis in the Navy 1955
Navy Wife 1956
Screaming Eagles 1956
A long time before most knew him from Route 66 (60-64) and Adam-12 (68-75)