The K22 was a K frame.
I wouldn't pay more than 400 for one in that condition.
With box and in 98% condition you could pay 900 from one. Provided it's pristine.
The K22 is the epitome of a .22 target revolver. If you can snag it at a good price and it's mechanically excellent. You would have a fine shooter indeed.
An enlightened zeal for the energy and efficiency of government will be stigmatized as the offspring of a temper fond of despotic power and hostile to the principles of liberty.
Alexander Hamilton, author of Federalist No. 1. 10/27/1787