Case XX two blade Small Congress with Pocket Worn Gray Bone Crandall Jig handles - 6268 CS.  Carbon Steel Sheepfoot and Pen blades.  3 1/8" closed.

USA

NOTE:  This knife has high carbon steel blades.  This steel, while considered by many to be a superior pocket knife steel will rust and tarnish.  Keep clean, dry and lightly oiled to help preserve the blade finish.