Glad you ended up with some hard to find goodies. My .357 barrel looks in similar condition to yours. There is a very light handguard shadow, it was mounted at one time, but appears very little used. It is the upgraded mirror gloss version and upgraded rear sight with positive locks that didn't show up in the pictures. The benefit of being able to inspect in person. It is missing the handguard screw lock dovetail dingus, but no big deal as I had a spare from the TC I purchased already. Already installed and shot it in the severe cold this weekend. I didn't have much patience for shooting tight groups at -5F, but managed 5 inside an inch at 25 yards with my basic 125 gr cast .38spl plinker load.