Böker - Boker Solingen Germany - Tree Brand Knife - Ceramic Blade - Bone Handle 

This a Böker Solingen pocket knife. It is a ceramic blade knife. This has a bone handle and is a blue-ish/grey-ish color. 

The blade has Boker Ceramic engraved on it. The locking mechanism to close the blade is etched to say Germany.

This is an excellent shape, aside from a bit of wear.

If you need anymore photos or have any questions, just let me know!