BEAUTIFULLY AGED.  THIS IS AN OLD CASE XX!  Right from an estate sale. 
 
CASE XX model 61048.  Made between 1965 to 1969.  SINGLE BOLSTER WHICH IS HARDER TO FIND.  Larger pocket knife also at 4" long when closed and 7 1/4" long when open.
 
Condition:  Perfectly aged.  Handle material has no cracks or chips.  Opens as it should.  Still has some snap.  Light signs of age and wear.  Could use a cleaning to be perfect...or keep the patina.  SEE PICTURES.
 
4" long when closed.  Single blade.
 
Will be protected well and insured.

 
Location E2