While visiting L.A. in 1965, I saw a LAPD motorman with what I now recognize to be the grip frame of a Colt New Service, the only time I have seen an "active" New Service.
My Dad's primary duty gun from 1938/39 till the mid-60s was a 6" New Service with King sights and action job in .357magnum.
It was also his centerfire target pistol on the Police Team.