They are AWESOME little 22's, I have 2 in different sizes....keep it! Not an expensive gun but very well made and consistant!!!! if you do want to get rid of it, let me know but I'd keep it ifin I were you brother!
I have a Hi-Standard Supermatic Trophy that was given to me by my Dad. Also in the box like you have in the picture. It is an awesome shooting pistol, and I'm sure the revolver you have there is as well. In the 60's Hi-Standard was it as far as making competition pistols.
That's a beauty. I've got an old High Standard Sentinel that's my river fishing gun for shooting cottonmouths. Great little guns. It's a keeper and that one looks in great shape with the box and all. Great find.