A great vintage piece....I believe this was made by Utica Cutlery.  I would date this to the 1960's.  Looks to either have walnut or maybe teak scales.
 
Some signs of age as seen in pictures.  No cracks or chips in the handles.  Blade folds out.  Very light snap.
 
3 3/4" total length when closed.  Fat blade.
 
Location E2