Need help dating my Winchester model 67

[7.62xGrant]

hey guys, I just bought a winchester model 67. Unfortunately it hs no serial number or manufacture date. Hopfully the pics can help date this thing.

 

[NorthCoastBigBore]

Pictures aren't displaying? These are great rifles

 

[Fassteel]

If you have a finger groove on the front of your stock you have an older model, if not its any ones guess. FS