vintage case xx whittler knife 1940-64 pocket knife, Its say more closer to the 1940s era from my experience
Hard to read the number on the knife I believe its  6308 
does have some oxidation patina on the blades and imperfections associated with
older vintage knives. 
Please NOTE::: the fine scratches, overall wear to the blades and handles, its been use and probably sharpened 
at some point over the years, it also has some Blake oxide marks on the blade as well. 
The blades are still very tight and still have some snap left to them,