This is a Case XX Tri-Fold Pocket Knife. Tang stamp is a Case, Lightning "S" stamp with 1-Dot. Made in 1989. Tri-Fold knife weighs only 1.7 ounces. Designed by Blackie Collins. Unique design, 3 3/8" closed. Black nylon handle construction. Stainless blade with easy-open thumb-stud. No box, papers-maybe, etc. A Picture's Worth a 1000 Words. Please e-mail me through eBay w/any ????????? This knife was discontinued years back, they don't show-up on eBay everyday. Knife is New, Un-used, Un-sharpened, etc. A great piece to collect or put back or use/carry !!! No Reserve !!!!