Single Blade Large Coke Bottle Folding Lockback Knife with Swing Guard. 1983 National Knife Collectors Association Limited Edition #5436 out of only 6000 produced. 5-1/2 inches closed. 9-3/4 inches open. Made in USA. "CASE XX ****SS*** USA" (7 dot with lightning bolt S) and "C61050L SAB SS" tang stamps. Round NKCA shield. Stainless steel blade etched "1 of 6000 NKCA 1983". Jigged brown bone handle. Nickel Silver bolsters. Brass liner.