Case XX 2003 5 Blade Mother Of Pearl Series Tony Bose Abalone 5 Blade Sowbelly Knife 1 of 500Case XX 2003 Tony Bose 5 Blade Abalone 5 Blade Sowbelly Collectible Knife. The pattern on this knife is TB8539 SS. This is a Tony Bose Design designated by the TB in the pattern number. This knife includes a Tested XX Nickel Silver Inlay Shield inlaid into the abalone handle. The color of the abalone and the material pattern is beautiful and vivid. The knife is 3 7 8 long when closed. This knife comes in the original Black Velvet display box and the