Vintage and from the same estate sale out of Ohio.  1950's?
 
CHECK OUT THE BEAUTIFUL MARBLED SEMI-TRANSPARENT HANDLE!!
 
Kent THORNTON USA pocket knife.  Single blade.  Made in the USA.
 
SHOULD CLEAN UP NICELY.  No damage to the blade.  Blade opens and closes.  GREAT SNAP!  Still has the loop.  SEE PICTURES.
 
2" long when closed.
 
Location E2