Not much to add except welcome to our home, Wagonman69.
Oh yeah, it was a S&W idiosyncrasy to mark their barrels with “CTG” to indicate the cartridge for which it was intended, so for decades, newcomers have described their new find as a “XXX CTG” as though that were a model designation... it’s not, but that’s just the way these thing go.
A bit of history about your K22, they were made in relatively small numbers prior to WW II, as simply Military & Police frames in 22 caliber with rather primitive adjustable sites grafted on. After the war though, they went all out with ribbed barrels nd micro adjustable rear sights. The end result of this evolution was your K22, which many regard as the finest 22 revolver ever made.
There was a whole series of these target grade revolvers, the Masterpiece Series, chambered in 22 LR, 32 S&W Long, and 38 Special. They were intended as fine target arms, but proved popular for all manner of shooting duties and these older post War examples are in high demand to this day.
I don’t know what you gave the elderly lady across the street for this nice revolver, but it might be a nice gesture to mow her lawn or shovel her driveway and sidewalk a time or two. What you got from her is a very nice thing!
Froggie