This is Shigeru Tozaki custom slipjoint folding knife. It features a hand rubbed ATS-34 blade complete with a beautiful engraved mother-of-pearl handle with carver titanium bolsters. 
Hand engraving on the handle with a peek-a-boo custom leather sheath.

Specifications
Blade Steel: ATS-34 Stainless Steel
Overall Length: 5.18"
Blade Length: 2.12"
Closed Length: 3.00"
Handle Material: Mother-of-Pearl
Carry Description: Leather Slip Pouch
HANDMADE IN JAPAN