22 Long Rifle CTG
I am trying to find out some information about a gun that my father left me. I know nothing about guns. It is a Smith and Wesson 22 Long Rifle CTG with a K serial #. Everything I can find on the internet seems to have different grips than this one. This some type of horns grips and the barrel is just over 5". As far as wear, I know he took excellent care of it, but it does show some signs of wear. Any information on it's worth would be appreciated.
Hard to tell for sure, but it sounds like you might have a model 17 or model 18. Use the thumb-piece on the left side of the frame to open the cylinder (holding the weapon in your right hand, use your right thumb to press the thumb-piece latch forward, toward the end of the barrel, and hold it, while rolling the cylinder out of the frame with your left hand). Look on the now-exposed cut-out part of the frame under the rear of the barrel, see if there is a model number stamped there (might say something like "Mod 17-2").
If it's a model 17 or 18, it should be a blue-steel six-shot revolver. The barrel on the M18 will usually be 4 inches; the M17 had a 6-inch barrel (measure from the front of the cylinder to the end of the barrel to get the correct measurement). Usually this model did not come with horn/stag grips, but it is fairly common for revolver owners to replace the grips to personalize the weapon or make it fit their hand better.
Pretty much any S&W .22 revolver in decent condition is worth $275-$300, but it might be twice that amount, depending on options and exact condition. Be aware that if you try to sell it to a sporting goods store or pawnshop, they will only offer you about half of what they think it is worth, so they can sell it at a higher price to cover their expenses and make a profit. That is how they pay their employees, keep the lights on, and the doors open.
The below photos may differ from your gun in the sights, trigger/hammer shape, and the color and appearance of the grips, but everything else should be fairly close.
A S&W Model 17 w/6-inch barrel:
A S&W model 18 with a 4-inch barrel: