1/2 inch Globe Valves.

[weidner]

New ones are cheap enough from BOSS and from other suppliers , if you do a quick google . It's not worth bothering with other people's shagged out cast offs . If the valve is not going to be seen , then go for a modern ball valve , especially on an injector steam feed . The plating soon comes off with a power wire brush , to expose the bronze , and the handles can be replaced with something in keeping .