Not to be picky, Bullet Bob, but that's not a .22 New Service, it's a New Frontier. The New Service is a large, double-action revolver.
I have:
A Colt Officer's Model Target (a bit older than the Match model Bullet Bob has).
A Colt Service Ace (the .22 conversion kit with the floating chamber.)
A Colt .25 Automatic (that's the model name)
A Colt M1849 (.31 caliber cap and ball) original (not a shooter)
A Colt Official Police (.38 Special), which is in possession of my oldest daughter at the moment.
A Colt Model 357 (which is the predecessor of the Python, not of the Trooper, which has different lockwork.) I carried this gun on my first tour in Viet Nam and served two customers.
A Colt SAA (2nd Generation) in .357.
An Argentine M1927 (an M1911A1, made in Argentina, on Colt machinery, under Colt supervision.)
A Colt New Service in .45 Long Colt.
I'd like to have an Anaconda, in .45 Colt, and would prefer the 4-inch barrel -- but they're priced too high these days.