Hello everyone,

I'm trying to determine the location of the retainer valve on the B-
end of Great Northern USRA double-sheathed boxcars, series 23494-
24993. I'm modeling a car circa 1948, with a vertical brakewheel and
AB brakes.

Photos of other USRA double-sheathed boxcars show the valve as being
located to the right of the brakestaff, just above the top most rib.
Did the GN cars have the same arrangement?

Thanks,
Mark Heiden