3 antique Gas valves help- one with nazi insignia

[WatchCollector56]

These were recently found in a box full of other valves and old bunsen burners. One has a Nazi insignia on it, and I don't recognize the other symbols on the remaining two valves. I was hoping if someone could tell me more about them? and their value?
Thank you!

 

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[Indian Steve]

Swastikas were actually Good Luck symbols before Hitler used them. They were on all kinds of things. Prehistoric Native Americans even used them.

 

[nhbenz]

Furnace gas valves would be my guess. The one witht the swastika is from the Crane Valve Co., 1920's or so.