Looks like a well taken care of K22 that some one added a set of targets to. Lots of people tossed the boxes and back in the mid 60s the revolver was young those non relieved targets were not considered special. May have came from one someone wanted to use with a speed loader.

It is a about $750+ gun IMHO. You could surely trade the non relieved grips for period correct targets or magnas with some left over on your side. I have no idea how much non relieved targets go for though.