Unknown Lever/Switch in Cab 13

[Jim Davis]

Hi everyone,

Any idea what the lever in the picture is? original/post war? The exact same lever is on both our Cab 13's at the top of the W reinforcing bars. I'm thinking they are not original, but considering they are exactly the same to a detail I'm not so sure.

It's as simple as it looks, perhaps the lever turns down over something to hold it at the back of the cab?

Thanks,

James