Looks to be made in 1948.

Call me crazy, but K22s are one of my favorite guns to shoot. I don't really understand the modern trend to save everything because it has value as a collector's item.

My bias, but for me it has even greater value because you have the chance to shoot one of the best revolvers ever made. Even better, you get to use something that belonged to your grandfather. Why save it so someone else gets the value? The only problem with yours is that it isn't broken in yet, so the trigger isn't as good as it will be some day. Very, very accurate revolver.

Money is just money in the end. Nice to have and useful, but I'd rather shoot the gun and get the value out of the use. You will never be able to buy a better 22 revolver.

On the mundane, $$ side, I would guess that your K22 is worth at least $600, and maybe as much as $800. They will never be made again, but remember, they were made to be used.