GOOD CHANCE FOR A POCKET KNIFE COLLECTOR!  The only one of these currently listed or that has recently sold.  EVEN FINDING A PICTURE OF THIS IS IMPOSSIBLE.
 
Vintage and from the same estate sale.
 
COLONIAL RI USA  single blade cream colored handle pocket knife.  Interesting long and skinny design with rounded end blade.  Looks to have a bakelite handle but please see pictures to be sure.
 
Condition:  Light signs of age on blades but no chips or breaks.  Light signs of age on handle.  No chips or cracks.
 
3 1/4 blade length.  4 5/8" long when closed.
 
Location E2