The rifle is a Model 67 (stamped on the barrel)  

          Your rifle barrel is 27” long and has no rifling, with bore smooth; barrel has brass beads for sights -- You have the Model 67 Smoothbore variation.

……..Your Model 67 rifle has a 20” barrel and gun weighs 41/2 pounds--- You have the Model 67 Junior variation.

 ……… Your rifle barrel is 24” long with skeet bored round barrel with brass beads for sights; shoots only LR SHOT cartridges -- You have the Model 67 Miniature Target variation. 

 ……..Your rifle barrel is 27” long, the bore has rifling, and sights are No. 32B rear with 2C elevator and a 75C front sight You have the Model 67 Standard variation.

The rifle is a Model 68 (stamped on the barrel)

…… Your rifle barrel is 27” long and has a Winchester 96A peep sight and front ramp sight No. 97 You have the Model 68 Standard variation

…… Your rifle barrel is 27” long and has a Winchester scope with dovetails cut in barrel metal You have the Model 68 variation that adds 300% to value

…… Your rifle barrel is 27” long and has a Winchester scope with NO dovetails cut into the  barrel  You have the Model 68 Standard variation that adds 350% to value

….. Your rifle barrel is 27” long and has a Winchester scope with dovetails cut in barrel metal and the gun shoots only WRF ammunition  You have the Model 68 Standard variation that adds 400% to value

If there are other extra features not mentioned, and they look original. -- You may have a factory "extra- option".  You may need to consult a professional appraiser to determine the value of your gun.