Case XX Abalone 2 Blade Peanut Knife 8220 SSCase XX 2002 Abalone 2 Blade Peanut Knife pattern number 8220 SS. The knife includes a primary Clip Point blade measuring 2 1 8" and the second blade is a pen knife measuring 1 1 2". The overall closed length of the knife is 2 3 4". This original knife from 2002 collectible knife includes the original black velvet display box and the outer Sleeve. This Case XX is from the Mother of Pearl Collection made in 2002. It is from a private collection and it