This is a fantastic vintage new old stock G. Sakai no. 20-3 Prototype folding drop point lockback knife. It is unmarked, only the box has the G. Sakai marking (original box). Came from closed knife store in Seki and still has price tag on it. It measures 4.5" closed and has Rosewood handle with nickel silver bolster and Gingami 1 stainless steel blade (equivalent to ATS-34, VG-10 and similar steels). This is a nice size knife made circa 1980 in Seki Japan at G. Sakai who also produced knives for Gerber. This knife is very similar to the knives produced for Gerber and excellent quality with tight lockup and good snap. We also have the smaller version of this knife for sale that has makers etch on the blade.