W.R. Case & Sons engraved on main blade. 4-5/8 inches closed. 8 inches open. Made in USA. W.R. Case & Sons Bradford PA 19 USA 90 and TESTED XX 6391 and W.R. Case & Sons Bradford PA tang stamp. Bomb shield. Stainless Steel blades. Rogers Bone handle. Nickel Silver bolsters. Brass liner. Original blue and white W.R. Case & Sons Cutlery Co Pocket Knives box