I have a 171 UH with aluminum bird's head pommel and brass spacer, serial# 03148. It has the blade etch (very faint). The sheath is the usual with the stone, but it is stained black (factory?), with brass snaps. The stamp on the blade is SCHRADE-WALDEN (first line), N.Y. U.S.A. (second line), and 171UH (third line). Mine is not what I'd call mint, but it is a very charming old soldier. I also have the later version, but still first run, serial #29661. I cannot detect a blade etch, but it may have had one. The sheath is the one with the stone and is the usual brown, with brass snaps.These knives are not stainless steel. Their charm is very real, but I would not pick them for hunting or defense either one. The old 147 and 497 blade patterns, and then the 165's and 160's are the best for handling game, and the ancient H-15 and its ilk by KABAR and countless others would still be my choice against humans.